Trabajos publicados por los investigadores afiliados al ITPS, ordenados por año de publicación
2025
Valorization of refinery sludges by hydrothermal carbonization towards circular economy
Autores:
Corrochano, N., De Tuesta, J. L. D., De Mora, A., Pariente, M. I., Segura, Y., Molina, R., & Martínez, F.Tipo / Medio / Año de publicación / Quartile:
Artículo / Waste Management / 2025 / Q1
Resumen:
Despite continuous efforts by the petroleum industry to address societal needs, the effective management of potentially hazardous wastes, such as refinery sludge, remains a significant challenge. Refinery sludge is a stable emulsion comprising water, petroleum hydrocarbons (e.g., oils, fats, organic compounds), solids, and metals. Hydrothermal carbonization (HTC) is a promising and environmentally friendly approach for valorizing oily sludge from refineries, given its adaptability and high efficiency in processing wet or high-moisture-content organic wastes. This study aims to systematically evaluate the effects of three key factors—initial sludge composition (through the mixing of three distinct real oily sludge streams from refinery), HTC temperature, and reaction time—on the properties of the resulting hydrochar, aqueous phase and oily phase. This scope was reached through a full factorial design of experiments and a deepened characterization of the as-received petrochemical samples and the separated HTC products. The study resulted in predictive models for 32 response variables associated with the HTC process using real refinery sludge mixtures. These variables include the HTC product distribution, hydrochar yield, higher heating value (HHV) of produced hydrochar, and the characteristics of the process water, among others. The developed models provide a reliable framework for optimizing HTC outputs and forecasting quality variations in response to changes in the operating conditions studied.
Unveiling the electrochemical threshold properties of novel aluminum‑copper bimetallic foils anodes for high reversibility li-ion batteries
Autores:
De Prado, J., Børresen, B. T., Utrilla, V., & Ureña, A.Tipo / Medio / Año de publicación / Quartile:
Artículo / Journal Of Energy Storage / 2025 / Q1
Resumen:
High-reversibility aluminum‑copper bimetallic anodes have been characterized to determine the threshold specific capacity necessary to ensure a highly reversible process when used as anodes in Li-ion batteries.By controlling the intercalation step, the formation of a β-AlLi surface layer on the aluminum side is promoted. This layer effectively mitigates the stress generated during the expansion and contraction associated to the charging/discharging process.The threshold specific capacity was assessed by applying four different charging steps, corresponding to 5 %, 10 %, 20 %, and 50 % of the experimental specific capacity of aluminum, over 100 galvanostatic charge/discharge cycles. Additionally, the effects of different current densities (0.5 and 1 mA/cm2) and two aluminum qualities (1XXX and 3XXX) on the reversibility of the reactions and capacity loss were analyzed.The results indicated that charging steps corresponding to a specific capacity of 200 mA.h.g−1 were identified as the threshold capacity for achieving reversible anode behavior. Although this property is the most critical factor, the threshold point also depends on various factors such as the aluminum alloy used for the bimetallic anodes and the current density applied. The use of the 3XXX alloy, which is underexplored in the literature for this application, has shown to improve electrochemical (EC) behavior, in some cases doubling the number of cycles in which the anode exhibits reversible EC behavior. Conversely, higher current densities lead to rapid volume changes, and the resulting stress cannot be relieved, thereby affecting the anode's service life.
Pig slurry valorization by ammonia recovery, biogas upgrading and microbial protein production
Autores:
De Nicolás, A. P., Serra-Toro, A., Ventura, M., Astals, S., Dosta, J., Mas, F., Segura, Y., Melero, J. A., Martínez, F., & Puyol, D.Tipo / Medio / Año de publicación / Quartile:
Artículo / Bioresource Technology / 2025 / Q1
Resumen:
The management of pig slurry is associated with environmental concerns due to its high nitrogen content and greenhouse gas emissions. This work proposes a photobiorefinery concept integrating steam explosion pretreatment, ammonia recovery via gas-permeable membranes, anaerobic digestion, and microbial protein production using purple phototrophic bacteria (PPB). Pretreatment at 145 for 30 min led to 57% solubilization of organic matter and 29% reduction of total solids. More than 99% of ammoniacal nitrogen was recovered from the hydrolysate in less than 3 h. Methane production increased by up to 350% after pretreatment. The recovered nitrogen was used as a nutrient for PPB growth, enabling CO assimilation from biogas under photoautotrophic conditions and microbial protein production. The results demonstrate the feasibility of coupling thermal, biological, and phototrophic processes for the integrated valorization of pig slurry, with simultaneous recovery of energy and nutrients.
Microbial dynamics, alkaloid stability, and lactose degradation of poppy seed kefir during fermentation and cold storage
Autores:
Casado-Hidalgo, G., González-Gómez, L., López-Revenga, P., Morante-Zarcero, S., Montilla, A., Sierra, I., Moreno, F. J.Tipo / Medio / Año de publicación / Quartile:
Artículo / Food Bioscience / 2025 / Q1
Resumen:
Adding poppy seeds to kefir significantly influences its microbiological profile and chemical composition. This study evaluated four kefir formulations: control, kefir spiked with low and high concentrations of opium alkaloids (OAs), and one with naturally contaminated poppy seeds. Samples were analysed during fermentation (0, 6, and 24 h) and following one week of cold storage. Key parameters were monitored, such as pH, microbial counts, carbohydrate fractions, organic acid profiles, and OA levels. Our findings reveal that kefir with poppy seeds exhibits distinct microbial dynamics, accelerated lactose degradation (with lactose levels dropping to as low as 0.3 g/100 g), and elevated production of lactic acid. Notably, while most OAs remained relatively stable throughout fermentation and storage, morphine levels decreased by over 50 % after cold storage. These results suggest that the intrinsic microbiota of poppy seeds enhances the fermentative process, improving lactose reduction and favouring the production of kefir more suitable for intolerant consumers. Furthermore, the importance of controlling OA levels to ensure food safety is highlighted. This study provides a solid basis for the development of functional fermented dairy products.
Magnetic MoS2–Fe3O4 nanocomposites for dual-function adsorption and photocatalytic removal of acetamiprid from water
Autores:
Amaral, L. O., Ortiz-Bustos, J., Horta, A. C., Amaral, J. S., Gómez-Ruiz, S., Del Hierro, I., & Daniel-Da-Silva, A. L.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Separation And Purification Technology / 2025 / Q1
Resumen:
The persistent detection of the neonicotinoid pesticide acetamiprid (ACE) in aquatic environments, driven by its chemical stability and water solubility, necessitates the development of more efficient remediation strategies. In this work, magnetic MoS2–Fe3O4 nanocomposites were synthesized for the combined adsorption and photocatalytic removal of ACE. Two composites with MoS2: Fe3O4 mass ratios of 5:1 (MF-5:1) and 2:1 (MF-2:1) were prepared by solvothermal growth of Fe3O4 on pre-synthesized MoS2 nanosheets and characterized using XRD, FTIR, XPS, SEM, TEM, and electrochemical techniques. MF-5:1 exhibited superior performance, removing 55 % of ACE (10 ppm) after 3 h of UV–VIS irradiation and retaining 40 % efficiency after three reuse cycles. Langmuir isotherm analysis revealed maximum adsorption capacities of 26.1 mg/g for MoS2 and 19.2 mg/g for MF-5:1, exceeding values reported for many conventional adsorbents. Although Fe3O4 incorporation slightly reduced adsorption capacity, it enabled magnetic separation, facilitating material recovery. Photocurrent and Mott–Schottky analyses confirmed enhanced charge separation and donor density, contributing to improved photocatalytic activity. These findings demonstrate the potential of MoS2–Fe3O4 nanocomposites as multifunctional, magnetically recoverable materials for pesticide removal and provide new insights into surface and charge transport properties relevant to environmental remediation technologies.
Green hydrogen production through low temperature thermochemical water splitting cycles based on non-ordered and ordered macroscopic structures of La0.6Sr0.4Co0.2Fe0.8O3±δ perovskite
Autores:
Orfila, M., Pérez, A., Díaz-Correas, E., Logar, N. Z., Linares, M., Sanz, R., Marugán, J., Molina, R., & Botas, J. A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / International Journal Of Hydrogen Energy / 2025 / Q1
Resumen:
The production of green hydrogen is one of the main targets of current energy and environmental policies. In this context, thermochemical water splitting is one of the potential methodologies that enable its production. This process is based on the thermal reduction of a metal oxide, followed by its re-oxidation with water releasing hydrogen. The main problem of this process, which hinders its full-scale application, is that reducing the metal oxide usually requires very high temperatures (>1500 °C). To decrease this reduction temperature, non-stoichiometric oxides such as perovskites have been proposed. In a previous work, the authors have presented La1-xSrxMeO3±δ (x = 0.2–0.4; Me = Mn, Fe and Co) perovskites as active materials decreasing the operation temperature to 1400 °C. However, those perovskites showed a significant lack of stability upon cycling, limiting their use in a future scale-up of the process. In this work, we present a multi-substituted perovskite type A1-xA'xB1-yB'yO3±δ (La0.6Sr0.4Co0.2Fe0.8O3±δ, named LSCF) as redox material with increasing stability and remarkable activity in the hydrogen production cycles even at temperatures below 1000 °C. This material was synthesised by reactive grinding as a green synthesis method optimising the variables of the process. Three reduction temperatures for the thermochemical water splitting were evaluated in the range 800–1200 °C at the same oxidation temperature of 800 °C. LSCF perovskite has been used in powder form with a H2 production of 5.22 cm3STP/gmaterial·cycle when the reduction was performed at 800 °C and 6.83 cm3STP/gmaterial·cycle when this reduction step was performed at 1000 °C. Afterwards, the LSCF was shaped into two different macroporous structures looking for a potential scaling-up of the process: reticulated porous ceramic structure (RPC) and a ceramic monolith structure with straight and well-ordered channels in which the perovskite forms a thin layer over the internal channels surface. The macroscopic structures exhibited good activity and stability working isothermally at 800 °C under N2 atmosphere, reaching H2 productions higher than 10 cm3STP/gmaterial·cycle. Particularly, the monolithic structure, characterised by its open macroporosity improves the heat transfer phenomena and the contact between the gas-phase and the perovskite, obtaining a stable hydrogen production under isothermal conditions of 17 cm3STP/gmaterial·cycle at 800 °C. That could be increased up to 32.5 cm3STP/gmaterial·cycle when the reduction step of the thermochemical water splitting is performed at 1000 °C. To the best of our knowledge, this is the higher value obtained for hydrogen production by a perovskite in this application at this reaction conditions. These results confirm the LSCF as a potential material for green hydrogen production by low-temperature thermochemical cycles.
Aphanizomenon flos-aquae: A Biorefinery for Health and Energy—Unleashing Phycocyanin's Power and Biogas Potential
Autores:
Águila-Carricondo, P., García-García, R., De la Roche, J. P., Galán, P. L., Bautista, L. F., Espada, J. J., & Vicente, G.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Marine Drugs / 2025 / Q1
Resumen:
This study presents a biorefinery approach for Aphanizomenon flos-aquae, demonstrating its potential as a dual source for phycocyanin and biogas. The antioxidant capacity of the extract was evaluated using the ABTS•+ assay, while flow cytometry determined its cytotoxic effects on breast cancer (HCC1806) and brain glioma (U-118 MG) cell lines, comparing pure C-phycocyanin to the non-purified extract. The non-purified extract scavenged 77% of ABTS•+ radicals at 2.4 mg/mL, compared to 22% for pure C-phycocyanin. In U-118 MG cells, pure C-phycocyanin accounted for 55.5% of the 29.9 ± 6.1% total mortality observed with the non-purified extract at 0.75 mg/mL. HCC1806 cytotoxicity (80.9 ± 5.1% at 1 mg/mL) was attributed to synergistic effects of other extract components. The spent biomass was valorized through anaerobic digestion for biogas production, enhancing process sustainability. At a 2:1 inoculum-to-substrate ratio, the anaerobic digestion of the spent biomass yielded 447 ± 18 mL CH4/gVS, significantly higher than the 351 ± 19 mL CH4/gVS from the initial biomass. LCA estimated the environmental impacts of the A. flos-aquae biorefinery for phycocyanin production, targeting the cosmetic, food, and nutraceutical sectors, and highlighting the benefits of spent biomass valorization to produce biogas within a circular economy framework. This integrated approach demonstrates the potential of A. flos-aquae for the sustainable production of high-value compounds and renewable energy.
A Comparative Study of Recombination Mechanisms and Long-Term Outdoor Degradation in Perovskite Solar Cells and Modules Including Self-Assembled Monolayers
Autores:
Delgado‐Rodríguez, S., Del Pozo, G., Contreras, P., Arredondo, B., Vishwanathreddy, S., Parion, J., Ramesh, S., Aernouts, T., Aguirre, A., & Romero, B.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Solar RRL / 2025 / Q1
Resumen:
Perovskite solar cells are one of the most promising photovoltaic technologies in the last decades. Inverted (p–i–n) cells using NiOX as hole-transport layer (HTL) have gained attention due to their easy fabrication methods and high stability, although they often exhibit reduced efficiencies due to non onlyoptimized energy-level alignment. To address this issue, different approaches have been developed, such as the use of self-assembled monolayers (SAMs) on top of the HTL. Herein, a comparative study between regular p–i–n cells and cells using Me-PACz as an SAM on top of NiOX is we presented. Devices with SAM exhibit enhanced open-circuit voltage and efficiency. Temperature DC and AC characterization reveals that the incorporation of SAM reduces recombination at the interface, as seen from the comparison of the perovskite bandgap (1.6 eV) and carrier activation energy ≈1.1 and ≈1.59 eV for reference and SAM, respectively. Finally, an outdoor degradation experiment with minimodules has been conducted. The experiment spanned for more than 500 days, and results show that minimodules with SAM were less stable than those based on the reference layer structure. This is due to a severe decrease in the short-circuit current, which could be attributed to a deterioration of the SAM spacer.
A comparative approach for self-healing of carbon nanotube epoxy/polycaprolactone composites: Joule, Infrared, and oven heating
Autores:
Calderón‐Villajos, R., Vázquez‐López, A., Jiménez‐Suárez, A., Sánchez‐Romate, X. X. F., & González-Prolongo, S.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Polymer Composites / 2025 / Q1
Resumen:
The self-healing process in PCL (polycaprolactone)/epoxy blends is studied in order to optimize the healing process and understand its underlying mechanism. For this purpose, PCL/epoxy blends are prepared with and without multiwall carbon nanotubes (MWCNTs) addition. Three different self-healing heat-inducement techniques are used (an oven, Joule effect, and infrared (IR) lamp) as a function of healing time (2, 5, 10, and 15 min) and PCL concentration (5, 10, and 15 wt%). The results obtained demonstrate that the addition of MWCNTs to the polymer matrix in PCL/epoxy blends accelerates the self-healing process, attributed to an improved heat diffusion in MWCNTs/PCL/epoxy blends. The best self-healing results were obtained with the highest self-healing time and concentration of PCL, caused by the higher probability of the crack formation over a PCL reservoir. The most efficient techniques to induce the self-healing process in PCL/epoxy blends with and without MWCNTs are the conventional oven and the Joule Effect, respectively, being faster the latter method, as it induces a homogeneous internal heating of the material. Moreover, Joule effect can be controlled remotely, while IR radiation is a noncontact technique, which can be applied in situ. The three heating methods are evaluated considering these factors alongside their energy efficiency, establishing a method to choose a specific heating source for similar systems.
Adsorption of Mercury in Aqueous Solutions by Functionalized Cellulose Extracted from Soybean Hulls
Autores:
Rigoletto, M., Rapp, M., Arencibia, A., López‐Muñoz, MJ., Tummino, M. L., De Paz, N. F., & Laurenti, E.
Tipo / Medio / Año de publicación / Quartile:
Artículo /Chem Plus Chem / 2025 / Q2
Resumen:
The presence of potentially toxic elements (PTEs) in drinking water and the food chain is a well-known hazard to human health. Among PTEs, mercury is particularly dangerous for humans and other living organisms due to its wider effects on internal organs. Hg contamination is a critical issue for water bodies used for aquaculture, making its elimination mandatory. Among the techniques proposed for Hg removal, adsorption is advantageous because of its versatility, absence of secondary pollution, and relatively low cost, especially when adsorbents can be obtained from waste materials. In this article, adsorbent materials are synthesized by introducing thiols and primary amino groups into cellulose fibers isolated from soybean hulls. After characterization, the ability of the materials to remove mercury from both ultrapure and aquaculture water solutions is tested. The results confirm the affinity of Hg for thiol groups, leading to the adsorption of 44 mg(Hg)/g in a wide pH range. The amino-modified material adsorbs ≈50% Hg less than the thiol-functionalized one. Test in real water shows that organic matter and salts influence the Hg adsorption process, without affecting the overall efficiency. Finally, in real water, a final concentration below the Hg legal limit for human consumption (1 μg L−1) is found.
Advancing polypropylene quantification in recycled HDPE: A comparative study of FTIR, DSC, TREF, and TGIC for enhanced plastic circularity
Autores:
Blanco, A., Juan, R., Paredes, B., Domínguez, C., & García-Muñoz, R. A.
Tipo / Medio / Año de publicación / Quartile:
Artículo /Polymer Testing / 2025 / Q1
Resumen:
The exponential growth in the production and demand for plastic materials has given rise to significant environmental concerns, highlighting the need for effective recycling strategies to reduce plastic waste and give these materials a new life. Nevertheless, recycling plastic materials present a significant challenge. For instance, even trace amounts of polypropylene (PP) in recycled high-density polyethylene (HDPE) can significantly affect its physical, chemical, and mechanical properties. It is therefore imperative to precisely determine the levels of PP contamination, which is the principal objective of this study, to ensure the quality of recycled materials and compliance with regulatory standards in a range of countries. An alternative analytical technique based on a chromatographic method involving the adsorption of the polymer chains in a support, namely Temperature Gradient Interaction Chromatography (TGIC) is evaluated. To ascertain the efficacy of the proposed method, it has been benchmarked against other established techniques within the recycling industry, such as Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimetry (DSC) as well as recently published alternative method, Temperature Rising Elution Fractionation (TREF). This study offers an examination of the advantages and challenges associated with each of these techniques, with the objective of facilitating the selection of an optimal PP quantification method in recycled PE that can enhance the sustainability and quality control of recycled materials.
Aging effects on the structural integrity of carboxyl terminated polybutadiene propellants
Autores:
Martínez, M., López, R., Rodríguez, J., & Salazar, A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Theoretical And Applied Fracture Mechanics / 2025 / Q1
Resumen:
Structural integrity of composite solid propellants (CSPs) is one of the main concerns when considering the performance of CSP motors. The development of cracks in the propellant's grain, caused by aging during the service life of the motor, is the main reason for its catastrophic failure. In addition, the fracture characterization of these viscoelastic and highly filled materials is not fully solved yet and hardly addressed for aged CSP. This manuscript presents a broad and comprehensive study on the fracture behavior of aged CSPs, where Schapery's viscoelastic fracture mechanics (VEFM) methodology is used to effectively characterize the fracture behavior of a composite solid propellant with carboxyl-terminated polybutadiene (CTPB) binder. For that, stress relaxation, fracture and tensile tests have been performed on non-aged and aged CSP. Three different accelerated aging methods were employed (mechanical, thermal and ozone) that are related to the phenomena that deteriorate the material during the lifespan of the motor. Two main contributions are derived from this work. The first one is the understanding of the fracture processes developed in aged CSP, under different types of aging. The second most relevant contribution is that the cohesive stress, as the fracture parameter inferred from the VEFM approach, is observed to be correlated to the dewetting stress, a material measurable parameter. The results have potential implications for the design and longevity of future solid rocket propellants.
Analytical Strategies for Green Extraction, Characterization, and Bioactive Evaluation of Polyphenols, Tocopherols, Carotenoids, and Fatty Acids in Agri-Food Bio-Residues
Autores:
Vicente-Zurdo, D., Gómez-Mejía, E., Morante-Zarcero, S., Rosales-Conrado, N., & Sierra, I.
Tipo / Medio / Año de publicación / Quartile:
Artículo /Molecules / 2025 / Q1
Resumen:
Recent advancements in analytical strategies have enabled the efficient extraction and characterization of bioactive compounds from agri-food bio-residues, emphasizing green chemistry and circular economy principles. This review highlights the valorization of several agri-food bio-residues for the extraction of high-value-added bioactive compounds, particularly polyphenols, tocopherols, carotenoids, and fatty acids, as a biorefinery approach. To this end, the adoption of environmentally friendly extraction technologies is essential to improve performance, reduce energy consumption, and minimize costs. This study therefore examines emerging methodologies such as supercritical fluid extraction, pressurized liquid extraction, pulsed electric fields, and matrix solid-phase dispersion, highlighting their advantages and limitations. Additionally, the chemical characterization of these bioactive compounds is explored through spectrophotometric and high-resolution chromatographic techniques, crucial for their accurate identification and quantification. This is complemented by an analysis of bioactivity assays evaluating antioxidant, antimicrobial, anticancer, neuroprotective, and anti-inflammatory properties, with a focus on their applications in the food, pharmaceutical, and cosmetic industries. However, the analytical control of toxic compounds, such as alkaloids, in these bio-residues is undoubtedly needed. Ultimately, this approach not only promotes sustainability but also contributes to the development of eco-friendly solutions in various industries.
Application of Rice Husk-Derived SBA-15 Bifunctionalized with C18 and Sulfonic Groups for Solid-Phase Extraction of Tropane, Pyrrolizidine, and Opium Alkaloids in Gluten-Free Bread
Autores:
Vera-Baquero, F. L., Gañán, J., Casado, N., Pérez-Quintanilla, D., Morante-Zarcero, S., & Sierra, I.
Tipo / Medio / Año de publicación / Quartile:
Artículo /Foods / 2025 / Q1
Resumen:
Rice husk (RH), a globally abundant agri-food waste, presents a promising renewable silicon source for producing SBA-15 mesoporous silica-based materials. This study aimed to synthesize and bifunctionalize SBA-15 using RH as a silica precursor, incorporating sulfonic and octadecyl groups to create a mixed-mode sorbent, RH-SBA-15-SO3H-C18, with reversed-phase and cation exchange properties. The material's structure and properties were characterized using advanced techniques, including X-ray diffraction, infrared spectroscopy, N2 adsorption–desorption isotherms, nuclear magnetic resonance, and electron microscopy. These analyses confirmed an ordered mesoporous structure with a high specific surface area of 238 m2/g, pore volume of 0.45 cm3/g, pore diameter of 32 Å, and uniform pore distribution, highlighting its exceptional textural qualities. This sorbent was effectively utilized in solid-phase extraction to purify 29 alkaloids from three families—tropane, pyrrolizidine, and opium—followed by an analysis using ultra-high performance liquid chromatography coupled to ion-trap tandem mass spectrometry. The developed analytical method was validated and applied to gluten-free bread samples, revealing tropane and opium alkaloids, some at concentrations exceeding regulatory limits. These findings demonstrate that RH-derived RH-SBA-15-SO3H-C18 is a viable, efficient alternative to commercial sorbents for monitoring natural toxins in food, offering a sustainable solution for repurposing agri-food waste while addressing food safety challenges.Keywords: rice husk; bifunctionalized SBA-15; solid-phase extraction; tropane alkaloids; pyrrolizidine alkaloids; opium alkaloids; multifamily analytical methodology; food control.
Assessing the photochemical mineralisation of dissolved organic carbon in lakes
Autores:
Carena, L., García-Gil, Á., Marugán, J., & Vione, D.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Foods / 2025 / Q1
Resumen:
Photochemical mineralisation is an abiotic process by which the organic matter in natural waters, which is mostly dissolved, is eventually transformed into CO2 by the action of sunlight. The process has important implications for global C cycling, the penetration of sunlight into the water column, photochemical reactions, and microbial processes. Here we applied an approximated photochemical model to assess the extent of CO2 photogeneration by mineralisation of dissolved organic matter in lakes located between 60°S and 60°N latitude. The results suggest that, although lake-water organic matter would usually undergo faster photomineralisation in the tropical belt than elsewhere, by far the highest contributions to the photochemical production of CO2 would come from lakes located between 30°N and 60°N latitude. In particular, of the ~7 × 104 lakes we selected for the study, around 50 % of CO2 photogeneration would be accounted for by just 7 large lakes, of which only one is located in the tropical belt. It appears that the lake surface is a very important factor that affects the overall photomineralisation potential of dissolved organic matter.
Assessment of atropine and scopolamine in commercial multigrain cereal-based baby products using UHPLC-TQ-MS/MS and solid phase extraction with MCM-41 mesostructured silica as sorbent
Autores:
Vera-Baquero, F. L., Pérez-Quintanilla, D., Morante-Zarcero, S., & Sierra, I.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Food Chemistry / 2025 / Q1
Resumen:
A sample preparation procedure for the analysis of tropane alkaloids (atropine and scopolamine) in multigrain cereal-based baby products (MGBP) has been optimized in this study. The protocol was based on a solid-liquid extraction, followed by purification by solid-phase extraction with MCM-41 functionalised with sulphonic acid groups as sorbent, before the analysis by ultra-performance liquid chromatography coupled to triple quadrupole tandem mass spectrometry. The method was successfully validated with limits of quantification of 0.005 and 0.05 μg/kg for atropine and scopolamine, respectively. The analysis of a quality control material (TAs in baby food multigrain) demonstrated the suitability for the purpose of the methodology. The analysis of twenty commercial MGBP (mixtures of 2 to 10 cereal flours, with honey, milk, fruit pulp or juices) purchased between 2016 and 2024, revealed the presence of atropine (between 0.07 and 1.0 μg/kg) and scopolamine (between 0.15 and 12 μg/kg) in all the MGBP analysed.
Assessment of the viscoelasticity effects on the fracture resistance of polyacrylamide-alginate hydrogels
Autores:
Salazar, A., Martínez, M., Reinhards, C., Rico, A., & Rodríguez, J.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Engineering Fracture Mechanics / 2025 / Q1
Resumen:
Hydrogels are conditioned by viscoelasticity and poroelasticity. This work aims to assess the viscoelastic dissipation on the fracture parameters of polyacrylamide-alginate hydrogels applying the Viscoelastic Fracture Mechanics approach. The viscoelastic and poroelastic contributions were separated and quantified and the analysis of the characteristic times revealed that the poroelastic contribution could be disregarded. The fracture behaviour was obtained using the viscoelastic response once the poroelastic contribution was discounted from the mechanical relaxation response. The viscoelastic dissipation on the fracture parameters was not pronounced, with better fracture resistance the higher the alginate content. A linear relation has been observed between the J-integral and Crack Tip Opening Displacement through a cohesive stress with values similar to the tensile strength.Bi-Layered, Ultrathin Coating Initiated Relay Response to Impart Superior Fire Resistance for Polymeric and Metallic Substrates
Autores:
Tang, W., Chen, Q., Li, J., Ao, X., Liu, Y., Qian, L.,González-Prolongo, S., Qiu, Y., & Wang, D.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Nano-Micro Letters/ 2025 / Q1
Resumen:
Developing high-efficient flame-retardant coatings is crucial for fire safety polymer and battery fields. Traditional intumescent coatings and ceramifiable coatings struggle to provide immediate and prolonged protection simultaneously, which limits the applicability. To address this, an innovative bi-layered coating with organic/nano-inorganic additives is inspired by differential response behaviors, enabling relay response effect with both fast-acting and extended protection. Specifically, two layers function continuously in the form of a relay. With a mere 320 microns, the bi-layered coating withstands fire temperatures of up to 1400 °C for at least 900 s. Consequently, the coating effective prevented burn through in aluminum plates and glass fabric-reinforced epoxy resin, which otherwise were burned through in 135 and 173 s, respectively. Meanwhile, the bi-layered coating suppressed the formation and decomposition of solid interface layer in lithium soft-package batteries, leading to prolonged electrochemical stability and fire safety. Additionally, the bi-layered coating with a fast response endows polyurethane foam with rapid self-extinguishing, preventing ignition even under exposure to strong fire of 1400 °C. Shortly, our work offers new insights into the design and development of thin, high-performance, and multi-application flame-retardant coatings.
Cu-doped MOF-derived α-Fe2O3 coatings on carbon fiber fabric as Li-ion and Na-ion battery anodes for potential structural batteries
Autores:
González-Banciella, A., Martinez-Diaz, D., Kundu, M., Sánchez, M., & Ureña, A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Journal Of Power Sources / 2025 / Q1
Multifunctional composite materials have emerged as the most promising way to develop materials that can simultaneously store energy and serve structural roles. However, although carbon fiber is a suitable substrate due to its excellent mechanical properties and electrical conductivity, its low specific capacity limits its performance. To address this, coatings constituted by Transition Metal Oxides (TMOs) have been proposed to enhance the specific capacity. Unfortunately, these materials suffer from some drawbacks as a low rate capability and limited cyclability. To mitigate these issues, strategies such as surface coating of carbon fibers with TMOs derived from metal-organic frameworks (MOFs) are being explored. In this study, a simple and cost-effective doping process has been carried out to improve the electrochemical performance of carbon fiber as a Li-ion anode. This was achieved by depositing MOF-derived α-Fe2O3 on carbon fiber, followed by Cu2+ doping. The doping with Cu2+ has not only improved the rate capability but also increased the specific capacity by 18 % at a current density of 25 mA/g, reaching 383 mAh/g. Furthermore, Cu2+ doped α-Fe2O3 on carbon fiber has been successfully characterized for Na-ion applications, demonstrating a specific capacity of 150 mAh/g at 5 mA/g.
Deciphering a New Electrolyte Formulation for Intelligent Modulation of Thermal Runaway to Improve the Safety of Lithium-Ion Batteries
Autores:
Ghosh, A., Tian, S., Zhang, M., Gómez, I. L., Chen, Q., Islam, M., Bhatia, B., González-Prolongo, S., Lochab, B., & Wang, D.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Advanced Functional Materials / 2025 / Q1
Thermal runaway remains a persisting challenge that poses a significant risk to lithium-ion battery (LIB) users. In commercial LIBs, thermal runaway is typically controlled using temperature-responsive trilayer polypropylene/polyethylene/polypropylene (PP/PE/PP) separators. However, because of thermal shrinkage at ≈160 °C, these separators often fail to prevent thermal runaway in practical LIBs. Electrolyte engineering is, therefore, crucial to mitigate the risk of thermal runaway in LIBs. In this context, the Diels-Alder click chemistry is being introduced to tackle the thermal runaway issues in LIBs. A thermoresponsive electrolyte is proposed composed of a lithium salt dissolved in vinylene carbonate (VC) and 2,5-dimethylfuran (DMFu) that functions effectively in batteries at room temperature. At high temperatures, VC and DMFu participate in Diels-Alder reactions, forming oligomers that significantly decrease the ionic conductivity of the electrolyte and concurrently occlude the micropores of PP/PE/PP separators. These dual effects enable a two-step intelligent modulation of thermal runaway, with a warning phase activated above 80 °C and a complete thermal shutdown at 120 °C. The thermoresponsive electrolyte formulation deciphered in this study holds great potential for advancing the safety of LIBs through electrolyte engineering.
Dual-Curing MWCNT nanocomposites for Energy-Efficient electroactive shape memory and In-Situ processing
Autores:
Collado, I., Vázquez-López, A., Jiménez-Suárez, A., & González-Prolongo, S.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Chemical Engineering Journal / 2025 / Q1
Dual-curing thermosets offer a promising solution to overcome the traditional limitations of epoxy systems, particularly in terms of shape adaptation and post-curing processing. However, there is still limited knowledge on the influence of the thiol-epoxy ratio and the use of reinforcements. In this work, we present a dual-curing thiol-epoxy system with latent anionic homopolymerization, reinforced with 0.175 wt% multi-walled carbon nanotubes (MWCNTs). This combination enables the integration of shape memory, thermoformability, and electrothermal functionality, adding multifunctionality to the system. The system was evaluated across different thiol:epoxy ratios (0.4, 0.6, 0.8, and 1.0). All formulations maintained or improved thermal, mechanical, and electrical properties, with tunable glass transition temperatures and excellent stiffness. Thermomechanical analysis revealed a post-curing processing window exceeding 40 °C, enabling robust shape memory programming. Joule heating experiments confirmed electroactive shape recovery at voltages as low as 55 V, with temperature control up to 175 °C and > 90 % thermal homogeneity. Energy savings through Joule heating for second cure and shape memory of up to 99 % compared to conventional heating were demonstrated. A comprehensive shape-memory analysis was performed, analyzing the influence of the angle restriction fixation (135°, 180°) as well as the heating source (oven or Joule heating), achieving fixations and recoveries > 90 % for some conditions. Furthermore, permanent shape fixation of complex forms was achieved through both convection and Joule-induced second curing. This work demonstrates, for the first time, the integration of electroactivated shape memory, in-situ curing, and energy efficiency in a dual-cure CNT-reinforced epoxy system, supported by both simulations and proof-of-concept validation.
Edible Flowers in Modern Gastronomy: A Study of Their Volatilomic Fingerprint and Potential Health Benefits
Autores:
Fernández-Pintor, B., Perestelo, R., Morante-Zarcero, S., Sierra, I., & Câmara, J. S..
Tipo / Medio / Año de publicación / Quartile:
Artículo / Molecules / 2025 / Q1
Given the transformation that gastronomy has undergone in recent years, there is a need to characterize some new foods that are being incorporated into the modern diet. Among them, edible flowers stand out, which are used today not only to enhance the organoleptic properties of gourmet dishes but also for some of the beneficial properties they provide to human health. In this study, the volatilomic fingerprint of seven edible flowers that are used daily in Michelin-starred restaurants on Madeira Island was established. For this purpose, the extraction of volatile organic metabolites (VOMs) was carried out using the headspace solid-phase microextraction (HS-SPME) technique followed by gas chromatography coupled to mass spectrometry (GC-MS). The results showed a wide variability among the analyzed flowers. While fewer VOMs were detected in some flowers, other flowers, such as Viola tricolor and Rosa spp., exhibited a greater number of these compounds. Acmella oleracea had the highest number of detected VOMs. Each of these VOMs contributes to the characteristic aroma representative of the respective flower, highlighting their potential health benefits, as some are known for their anti-inflammatory, antimicrobial, and even anticancer properties.
Electromagnetic Interference Shielding of a Sequential Dual-Curing Thiol-Epoxy System Reinforced with GNPs with High Shape Memory
Autores:
Collado, I., Vázquez-López, A., Heredia, S., De la Vega, J., Jiménez-Suárez, A., Maestre, D., & González Prolongo, S.
Tipo / Medio / Año de publicación / Quartile:
Modern electronics face several challenges during operation, such as interference of disruptive electromagnetic signals and high temperatures within a limited space. Both electromagnetic interference (EMI) and thermal management could be tackled simultaneously by employing smart efficient materials with high thermal and electrical conductivity. A dual-curing epoxy system, a new subset of adaptable materials, could potentially solve those challenges, with the proper selection of the reinforcement. Moreover, its manufacturing and synthesis process, which involves a sequential curing stage, constitute an attractive, selective, and fast methodology. The thiol–epoxy chemistry allows the synthesis of an epoxy system with high shape-memory capabilities while retaining optimal mechanical properties. Herein, dual-curing epoxy systems reinforced with graphene nanoplatelets (GNPs) are manufactured. The influence of the GNPs content is evaluated, which greatly increases upon loading while retaining a high shape-memory fixation and recovery rates (near 99%). A maximum EMI shielding efficiency of 24 dB is achieved for the higher GNPs content, which is endowed by the high electrical conductivity of the system. Moreover, a modelization of the near-field and far-field EMI shielding is reported, which agrees with experimental observation. This report shows the potential and multifunctional nature of dual-curing epoxy composites for EMI shielding and shape-memory-related application.
Enhancing photocatalytic performance of F-doped TiO2 through the integration of small amounts of a quinoline-based covalent triazine framework
Autores:
Moya, A., Sánchez-Fuente, M., Linde, M., Cepa-López, V., Del Hierro, I., Díaz-Sánchez, M., Gómez-Ruiz, S., & Mas-Ballesté, R.
Tipo / Medio / Año de publicación / Quartile:
We present the design and synthesis of a new quinoline-based covalent triazine framework (Quin-CTF) that combines two photoactive fragments within its structure (triazine and quinoline moieties). By hybridizing this CTF material with fluorine-doped titanium dioxide (F-TiO2), we prepared and characterized photocatalysts with enhanced performance that leverage the synergy between the two components for pollutant photodegradation in water. This F-TiO2@CTF hybrid system was evaluated for the photocatalytic degradation of methylene blue dye and a pharmaceutical compound such as ciprofloxacin as model water pollutants. The hybrid materials containing small amounts of CTF (0.5, 1, and 2 wt%) achieved remarkable photodegradation efficiencies, significantly outperforming their individual counterparts. The reactive oxidant species (ROS) involved in such processes catalyzed by F-TiO2 are different from those involved when pristine Quin-CTF or their hybrid materials are used. Furthermore, the hybrid materials demonstrated reusability, preserving high photocatalytic activity over multiple cycles. This work, therefore, highlights a promising strategy for designing cost-effective and eco-friendly photocatalytic systems via the incorporation of a small amount of CTF-based systems in a cheap material such as titanium dioxide, offering a sustainable and effective solution for mitigating water pollution.
Enhancing single and multi-component adsorption efficiency of pharmaceutical emerging contaminants using bio waste-derived carbon materials and geopolymers
Autores:
Ferreira, A. P., Baldo, A. P., Silva, A. S., Natal, A. P. S., Bezerra, A. J., Diaz de Tuesta, J.L., D., Marin, P., Peres, J. A., & Gomes, H. T.
Tipo / Medio / Año de publicación / Quartile:
Water contamination with pharmaceuticals like acetaminophen (ACT), sulfamethoxazole (SMX), and phenolic compounds such as gallic acid (GA), have become a global concern. These contaminants are persistent environmental pollutants that threaten aquatic life and human health. Adsorption is recognized as an efficient and low-cost solution to tackle water pollution. In this study, the efficiency of three adsorbents—activated carbon (AC), geopolymer (GP), and carbon nanotubes (CNT) prepared from solid wastes for the removal of ACT, SMX, and GA by adsorption is assessed. AC, GP and CNT are synthesized from real wastes to address solid waste management needs. Physisorption confirmed AC superior BET surface area (527 m2 g−1), followed by CNTs (66 m2 g−1) and GPs (30 m2 g−1), allowing to achieve the highest adsorption capacity: 126.8 mg g−1 for ACT, 54.9 mg g−1 for SMX, and 151.5 mg g−1 for GA, with respective breakthrough times of 314, 66, and 68 min. Kinetic and isotherm adsorption models are fitted for all pair pollutant-adsorbent reaching 33 equations to accurately predict adsorption process, concluding that pseudo-second-order kinetic and Freundlich model best fit experimental data, demonstrating a strong adsorbent-adsorbate affinity. The findings suggest that these sustainable materials offer promising solutions for treating contaminated water.
Exploring Adsorption Performance of Functionalized Mesoporous Silicas with a Different Pore Structure as Strong Cation-Exchange Sorbents for Solid-Phase Extraction of Atropine and Scopolamine
Autores:
Vera-Baquero, F. L., Morante-Zarcero, S., Pérez-Quintanilla, D., & Sierra, I.
Tipo / Medio / Año de publicación / Quartile:
In this work, mesoporous silicas with two types of mesoporous structures were synthesized and functionalized with sulfonic acid groups: MCM-41-SO3H (honeycomb-like hexagonal structure) and MSU-2-SO3H (three-dimensional porous structure with wormhole pores). The synthesized materials were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption–desorption, Fourier-transform infrared spectroscopy, 29Si solid-state nuclear magnetic resonance spectroscopy, and elemental analysis. The obtained functionalized materials were evaluated as sorbents for strong cation-exchange solid-phase extraction (SPE) to determine their efficiency in the adsorption and desorption of tropane alkaloids (atropine and scopolamine). The loading solvents, loading volume, analyte concentration, and elution volume were studied, using 50 mg of both materials. Analyses were carried out by ultra-high performance liquid chromatography coupled to triple quadrupole tandem mass spectrometry. The synthesized MCM-41-SO3H material presented the highest recovery efficiency and has proven to be a promising sorbent for strong cation-exchange SPE of atropine and scopolamine in aqueous media. The high degree of functionalization of MCM-41-SO3H and the high accessibility of the sulfonic groups for the target analytes, due to the regularity and uniformity of their pores, maximize the contact between the alkaloids and the sorbent, favoring efficient adsorption.Keywords: atropine; scopolamine; functionalized mesoporous silica; MCM-41-SO3H; MSU-2-SO3H; strong cation-exchange solid-phase extraction.
Fracture toughness of selective laser sintering Polyamide 12: Evaluation of failure criteria using Bayesian analysis
Autores:
Gómez, F., Gómez-Del-Rio, T., & Rodríguez, J.Tipo / Medio / Año de publicación / Quartile:
A methodology is proposed to assess the effectiveness of various models used for predicting the fracture toughness of polyamide 12 manufactured by selective laser sintering with U-notches, considering two different orientations of the 3D deposition direction. Specifically, six failure criteria have been examined, including the Theory of Critical Distances, the Cohesive Zone Model with linear softening curve, the Strain Energy Density Criterion, the Finite Fracture Mechanics and a phenomenological model. Bayesian statistical techniques have been used to evaluate their performance against experimental data. A comprehensive comparison, considering both parameter and model uncertainties, has been accounted for all six models.
HHF response of an optimized W-EUROFER joint brazed with pure copper
Autores:
Tipo / Medio / Año de publicación / Quartile:
The optimization of joint microstructure plays a critical role in assessing joint performance under high heat flux (HHF) conditions, as it dictates the final properties of the joint. This study investigates tungsten-EUROFER joints brazed using a copper interlayer as filler material under optimized brazing cycle conditions (1110 °C, 3 min), and subjected to simulated high heat fluxes exposing the plasma facing material, tungsten in this case, to a heating source (accelerated electron bean), while the joint is refrigerated through the EUROFER side. This experiment aims to mimic the heat fluxes and cooling conditions experienced in a fusion reactor environment. An optimized microstructure of the braze joint, designed to mitigate the formation of intermetallic compounds and undesirable phases, was implemented to enhance joint responses under high heat flux loads. The joints were subjected to 100 and 1000 heating-cooling cycles of 10/12 s. The target during heating is to reach the thermal equilibrium. Three different tungsten surface temperature were evaluated (600 °C, 700 °C and 800 °C) in different sample batches while cooling on the EUROFER side, removing the heat source during the cooling stage. Some overheating events, associated with crack propagation through the EUROFER-braze interface identified during the subsequent postmortem analysis by SEM, were detected during the application of some conditions of the test. The microstructure examination also reported a modification of the failure mechanism of the joint comparing with the previous studies and literature. This modification is associated with the optimized microstructure resulting in improved response to high heat flux loads. Interestingly, the shear strength increased to an average of 95.0 MPa after HHF testing, compared to 40.2 MPa obtained in similar joints with different microstructures.
Influence of the heat treatment on the MOF-derived Co3O4 coatings on carbon fiber fabrics used for structural supercapacitor applications
Autores:
Tipo / Medio / Año de publicación / Quartile:
Currently, electric vehicles have emerged as a cleaner alternative to their fossil-fuel counterparts. However, their features, especially their autonomy, are still far from what is expected. In this way, the development of structural supercapacitors based on multifunctional composite materials is being studied as a promising approach for reducing the weight of electric vehicles, which is essential to improve their energetic efficiency. Carbon fibers could serve the dual function of electrodes and reinforcements due to their high electrical conductivity and excellent specific mechanical properties. In this study, Co3O4 has been synthesized directly over a structural carbon fiber fabric using the ZIF-L metal-organic framework (MOF) as a precursor. Moreover, the influence of the temperature and time in the annealing and oxidation stages on the performance of fibers as an electrode for structural supercapacitors have been studied. The optimized coating exhibited a specific capacitance of 456.5 F/g of active material at a current density of 50 mA/g, demonstrating the significant impact of heat treatment on the MOF-derived Co3O4 coating. Moreover, a symmetric structural supercapacitor was fabricated, displaying a specific capacitance of 13.71 mF/g and an elastic modulus of 35 GPa. Additionally, this supercapacitor exhibited excellent mechanical properties and promising electrochemical properties compared to the existing bibliography.
Innovative
Stent Test Specimen by Additive Manufacturing for Reliable Mechanical Testing
and Simulation
Autores:
Tipo / Medio / Año de publicación / Quartile:
Cardiovascular diseases are the leading cause of mortality globally, underscoring the importance of reliable treatments such as cardiovascular stents, which prevent arterial collapse and improve blood flow. Despite their widespread use, stents face challenges in mechanical performance and biological compatibility. This study focuses on the mechanical characterization of biodegradable metallic stents, addressing limitations in current testing methods and simulations. Novel specimen geometries, designed for tensile strength testing, were developed using additive manufacturing (AM) to minimize damage from gripping clamps during testing. Finite element modeling simulations and experimental tests were conducted to evaluate the mechanical behavior of stents under ideal and real-world conditions. The results revealed that the values provided by the most common mechanical tests and simulations do not correspond to the actual values of the meshed structure. The proposed geometries demonstrated consistent mechanical behavior, effectively mitigating stress concentrations and enabling reliable data acquisition. These findings highlight the potential of AM in stent testing and validate the integration of experimental and simulation approaches for optimizing stent design and performance. This study establishes a framework for future research aimed at improving stent safety and reliability.
Investigation
of coating weight and steel substrate on the proprieties of hot-dip
galvanized coatings
Autores:
Tipo / Medio / Año de publicación / Quartile:
Microstructural, tribological, and electrochemical studies have been used to investigate the complex interaction between coating weight and the steel substrate in determining the quality of hot-dip galvanized coatings. Coatings with higher weight exhibit better corrosion resistance due to the formation of a thicker passivation layer during long-term exposure, making them suitable for aggressive environments, though mechanical strength may be reduced due to the influence of the ductile η phase. The choice of steel substrate has little influence on the coating's appearance, corrosion resistance. The results of this study enable the design of high-quality coatings that balance corrosion resistance, mechanical strength.
MgO-based catalysts for selective delignification of lignocellulosic waste and carboxylic acids production under mild hydrothermal conditions
Autores:
Vidal, N., Ventura, M., Orfila, M., Martínez, F., & Melero, J.A.Tipo / Medio / Año de publicación / Quartile:
Lignocellulosic biomass offers a sustainable alternative to traditional raw materials. However, its complex structure, and particularly the presence of lignin, presents a significant challenge for its conversion into valuable products. This study explores the catalytic performance of magnesium oxide (MgO) based materials for the selective delignification of lignocellulosic waste and concomitant carboxylic acids production. Different MgO samples have been synthesized through various synthetical methods with the purpose of promoting the selective delignification of a lignocellulose waste while minimizing the degradation of other polymers (cellulose and hemicellulose). The resultant lignin-free holocellulose solid after selective depolymerization might be used in subsequent fermentation processes. The catalytic results demonstrated that MgO synthesized by a sol-gel method exhibited the highest catalytic activity, achieving ca. 90 % lignin conversion with minimal degradation of cellulose and hemicellulose and outstanding production of carboxylic acids (ca. 30 % of the carbon of the degraded polymers was converted into carboxylic acids). The high concentration of medium-strength base sites combined with significant macroporosity are crucial for enhancing the catalytic performance of MgO-based catalysts. Importantly, these results were achieved under mild conditions (120 °C) using water as a solvent and without addition of external oxidant agents. Furthermore, the study observed a significant production of valuable (di)carboxylic acids, such as fumaric acid during the depolymerization process over optimized MgO catalyst. This research provides valuable insights into the potential of MgO as a sustainable catalyst for the selective conversion of lignin present in lignocellulosic biomass into valuable chemicals and biofuels.
Multifunctional
multilayer coatings: Enhancing durability through self-healing mechanisms
activated via Joule effect
Autores:
Tipo / Medio / Año de publicación / Quartile:
A multilayer coating with multifunctional capabilities has been developed, consisting of an inner self-heating layer via carbon nanotube (CNT) addition into an epoxy resin with two different surface pre-treatments (non-treated and grit blasted), and an outer self-healing layer based on an epoxy/polycaprolactone (PCL) blend and an epoxy/2-aminophenyl disulfide (2-AFD). The analysis of the glass transition temperature (Tg) in the outer layer showed no significant differences between PCL and AFD-based mixtures, with values around 135 °C. The results of the electrical conductivity tests demonstrated that the grit blasting surface pre-treatment on the inner layer had no influence on the electrical conductivity. Indeed, all systems successfully reached the temperature to activate the vitrimeric behavior of the outer layer via resistive heating at voltages within the range of 80 to 140 V. Moreover, a novel self-healing test was conducted and recorded in an environmental scanning electron microscope (ESEM) chamber to establish the self-healing time required to achieve a high crack recovery efficiency. Finally, the results of the self-healing tests under convective and Joule heating show comparable healing efficiencies, exceeding 82 % in all study conditions showing a good capability for an autonomous repair and increasing the accessibility in difficult conditions such as offshore wind energy.
Multiphysics, multiphase and multiscale modeling and characterization of porous media in electrochemical energy systems
Autores:
Porous materials play an important role in the electrodes of electrochemical energy systems (e.g., fuel cells, batteries, and supercapacitors) by enhancing ion transport, increasing surface active area, and improving charge storage capacity. Porosity increases volumetric density of actives sites, allows efficient electrolyte penetration, facilitating fast ion diffusion and reducing resistance. In supercapacitors and batteries, materials like metal-organic frameworks, porous carbons, and mesoporous oxides improve energy density and cycle stability. This Research Topic aims to serve as a gathering point for researchers engaged in the modeling and characterization of electrochemical systems, emphasizing multiphysics, multiphase, and multiscale transport phenomena. The design of engineered porous media with enhanced properties is of paramount importance to improve performance and enlarge durability, while reducing cost and extending commercialization of electrochemical energy devices. Extraction of good guidelines to produce novel multifunctional porous media is essential as part of the design of next-generation electrochemical systems. Porous media of interest include but are not limited to transport porous layers, catalyst layers, macroporous electrodes, membranes and porous flow distributors.
Nanocomposites
of sequential dual curing of thiol-epoxy systems with
Fe3O4 nanoparticles for remote/in situ applications: thermomechanical,
shape memory, and induction heating properties
Autores:
Tipo / Medio / Año de publicación / Quartile:
Artículo / Advanced Composites And Hybrid Materials / 2025 / Q1
Sequential dual-curing epoxy composites, such as the thiol-epoxy system, can potentially open new capabilities for end-products in the composite industry. This system remains stable after the initial curing and can undergo further reactions when exposed to a second stimulus, such as the use of magnetic induction: a remote and energy-efficient alternative. This study reports the first dual-curing thiol-epoxy resin reinforced with magnetic nanoparticles Fe3O4. The addition of Fe3O4 nanoparticles endows the polymer matrix with dual-stimuli shape memory, triggered by both conventional heating and the use of a magnetic field, broadening potential applications. The study examined various manufacturing conditions and loadings of Fe3O4, which improved the mechanical properties of the composites. The dual-response shape memory was evaluated by heating the polymer with both a conventional heat source and magnetic fields, resulting in a ~ 100% shape fixation and recovery ratio for either stimulus source, with superior performance under the magnetic field. Furthermore, under moderate magnetic fields, the system was able to reach temperatures as high as 160 °C, and the influence of various parameters on the efficiency of magnetic induction heating was studied by statistical analysis of design of experiments. Additionally, two proofs of concept were presented. In the first, the second curing step was performed under the in situ heating generated by the magnetic field, successfully fixing the temporary shape into the permanent form of the sample. In the second concept, the system was utilized as a smart switch or a threshold temperature sensor.
Novel
sustainable, smart, and multifunctional 4D-printed nanocomposites with
reprocessing and shape memory capabilities
Autores:
Tipo / Medio / Año de publicación / Quartile:
Artículo / Smart Materials And Structures / 2025 / Q1
The present paper explores the development of novel reprocessable nanocomposites with enhanced shape memory (SM) capability by Digital Light Processing 3D printing technology. A Covalent Adaptable Network was developed through a solvent-free strategy, based on polyurethane containing Diels Alder bonds, reinforced with carbon nanotubes (CNTs). The CNT addition allows for obtaining electrically conductive nanocomposites (up to 1.2 ± 0.7·10−1 S m−1). This enables Joule heating capability (average temperature over 100 °C by applying 100 V to the 0.3 wt.%CNT reinforced specimens), which was used as a heating method to trigger the SM cycle. First, the CNT content and thermal treatment were optimized to enhance the SM capabilities in a conventional oven (shape fixity ratio around 100%). Then, the SM capabilities triggered by Joule heating were characterized. Here, the optimized nanocomposites showed excellent shape fixity and recovery ratios (both above 95%). This heating method was proven to be low energy-consuming (approximately 1 W compared to around 750 W for a conventional oven), while also allowing for a fast, remote, and selective activation, which was demonstrated with a hand-like proof-of-concept by selectively recovering the permanent shape of each finger individually. On the other hand, the dynamic covalent bonds enable reprocessability. Here, the 3D-printed specimens were turned into powder and reprocessed using a powder processing tool to manufacture samples with a different geometry which were still electrically conductive, given the DA adduct formations. Results prove the multifunctional and smart capabilities of the developed nanocomposites, which make them suitable for applications such as soft robotics or actuators with an extended useful life, thus promoting sustainability.
Optimization
of the production of bio-jet fuel precursors from acetoin and 2-methylfuran
via hydroxyalkylation/alkylation over sulfonic acid resin
Autores:
Landazábal, F. J., Ventura, M., Paniagua, M., Melero, J. A., & Morales, G.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Catalysis Today / 2025 / Q1
Increasing carbon dioxide gas emissions in the aviation industry, together with the depletion of fossil fuel sources, are serious issues that require researchers to develop bio-jet fuel from sustainable renewable sources. A promising approach is the use of highly abundant and economic lignocellulosic waste biomass, from which furanic compounds can be derived. However, to obtain C9-C15 jet fuel-compatible products, C-C coupling strategies are mandatory to increase the chain length of the furanic platforms. Furthermore, there exists an uncovered potential for integrating fermentation-derived platforms, like acetoin, in advanced bio-jet fuel production routes. In this sense, this work explores the C-C coupling of acetoin, a fermentation-derived molecule, with 2-methylfuran (2-MF), a lignocellulose-derived molecule that can be obtained from selective hydrogenolysis of furfural, via hydroxyalkylation/alkylation (HAA). This solvent-free acid-catalyzed reaction yields oxygenated adducts incorporating one molecule of acetoin and 1-3 molecules of 2-MF (9–19 C atoms) that display high potential as bio-jet fuel precursors. However, side reactions are also present, coming from the auto-condensation of acetoin and/or 2-MF, yielding heavier or more oxygenated undesired compounds, so that selectivity appears as the key parameter in the catalyst performance. In this work, sulfonic acid-based resin Amberlyst-15 has displayed high activity and selectivity towards the most interesting di-condensed C14 compound, herein denoted as Ac(MF)2, which evidences the benefits of applying strong Brønsted acid sites allocated within a polymer matrix in high surface concentration. The optimization of the reaction conditions, assessed with the help of response surface methodology, led to over 77 % yield to Ac(MF)2 with acetoin conversion around 90 %, under the optimized reaction conditions (60 °C, 2-MF/acetoin = 2.5 (mol), 6 h, catalysts loading 20 wt% referred to acetoin). Amberlyst-15 catalyst was tested in a 5-cycle reusability experiment, keeping an acceptable level of catalytic activity and selectivity despite evidence of fouling due to the formation of organic deposits. These results pave the way for a new route of bio-jet fuel production starting from already established biomass-derived platform molecules.
Polyolefin and Polystyrene-Derived Carbon Nanotubes: Catalysts for Oxidative Desulfurization Under a Biphasic System
Autores:
Roman, F. F., Batista, M. C., Silva, A., Bezerra, A. J. B., Diaz de Tuesta, J.L., Mambrini, R. V., Silva, A. M. T., Faria, J. L., & Gomes, H. T..
Tipo / Medio / Año de publicación / Quartile:
Artículo / ChemCatChem / 2025 / Q1
The conversion of plastic solid waste into carbon nanotubes (CNTs) via chemical vapor deposition (CVD) and the effectiveness of these CNTs as catalysts for oxidative desulfurization (ODS) of a simulated fuel were investigated. The primary focus is on the use of CNTs synthesized from various polymer sources, including polyolefins and polystyrene (PS), to remove sulfur compounds using hydrogen peroxide (H2O2) as an oxidant. The surface modification of CNTs by using acids (H2SO4 or HNO3), the influence of the carbon feedstock (polyolefins vs PS), the use of co-catalysts, and the effect of the extractant phase were all evaluated on the oxidative removal of dibenzothiophene from a simulated fuel. Results revealed that CNTs derived from polyolefins displayed higher desulfurization efficiency (up to 77% in 8 h), with nitric acid-treated CNTs showing the best performance under oil-water biphasic systems. Replacing water with acetonitrile and adding a co-catalyst (formic acid) resulted in a desulfurization of 91% in 2 h of reaction. Under certain conditions, C─S bond cleavage was observed. This research contributes to the valorization of plastic solid waste and the reduction of atmospheric pollution, promoting circular economy practices and environmental sustainability.
Production of high value-added phenolic compounds through lignin catalytic pyrolysis over ion-exchanged hierarchical ZSM-5 and Beta zeolites
Autores:
Ávila, M., Alonso-Doncel, M., Cueto, J., Briones, L., Gómez-Pozuelo, G., Escola, J. M., Serrano, D., Peral, A., & Botas, J.A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Catalysis Today / 2025 / Q1
Synthesised H-ZSM-5 and H-Beta zeolites with hierarchical porosity (h-H-ZSM-5 and h-H-Beta) have been ion-exchanged with alkali (Na+ and K+) and alkaline-earth (Mg2+) metals and have been evaluated as catalysts to produce high value-added products through catalytic pyrolysis of lignin. In comparison with the thermal test, hierarchical zeolites in acid form are effective catalysts for lignin pyrolysis, favouring the production of valuable light compounds although reducing bio-oil* yield and increasing gas and coke formation. In this way, h-H-ZSM-5 zeolite promotes the formation of oxygenated aromatics, being guaiacols and syringols the major products. Alkali-exchanged variants of this zeolite enhance demethylation reactions improving the selectivity towards 2-methoxy-phenol and syringol, by modifying acid site properties. On the other hand, h-H-Beta zeolite, with larger pore size and stronger acidity, leads to higher concentration of oxygenated aromatics for both parent and ion-exchanged catalysts. Specifically, h-KH-Beta promotes the production of 2-methoxy-phenol and syringol. Besides, h-MgH-Beta stands out for its greater selectivity towards phenol and alkylphenols, such as dimethylphenol. Overall, the combination of accessibility, provided by the hierarchical porosity, with the different nature and strength of the acid sites, induced by the ion-exchange with alkali and alkaline-earth metals, allows tailoring the lignin catalytic pyrolysis process to selectively produce high value-added compounds.
Single-Walled Carbon Nanohorns Functionalization of PVA/PDMS for Flexible Triboelectric Nanogenerators: IoT Remote Gait Sensor
Autores:
Xu, J., Vázquez‐López, A., Del Río Sáez, J. S., De la Vega, J., Collado, I., González-Prolongo, S., Giannetti, R., Wu, J., & Wang, D.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Polymer Composites / 2025 / Q1
Composite nanomaterials comprise emerging materials for triboelectric nanogenerators (TENGs), as they provide higher voltage output than pristine polymer-based systems. Currently, efforts are aimed at improving the charge transfer between the tribolayers, which could be obtained by nanomaterial doping. Herein, the effect of synthesized single-walled carbon nanohorns (SWCNHs), an alternative to conventional carbon nanotubes (CNTs), on two different materials, polyvinyl alcohol (PVA) and polydimethylsiloxane (PDMS) is studied. In both cases, the addition of SWCNHs increases the dielectric constant of the layers. The TENG with the modified PDMS (mPDMS) showed the maximum voltage output, almost duplicating the one obtained with the pristine sample. Furthermore, a possible Internet of Things (IoT) application has been demonstrated, with the use of wireless technology and Lo-Ra communications as a gait sensor to provide evolution and information regarding the health condition and the footprint of a patient.
Solvent
Casting Reprocessing of Poly(vinylidene
fluoride-co-hexafluoropropylene)-Based Nanocomposite Sensors: An In-Depth
Study on Recyclability and Performance
Autores:
Díaz‐Mena, V., Sánchez‐Romate, X. X. F., Sánchez, M., & Ureña, A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Advanced Sustainable Systems / 2025 / Q1
Wearable electronics have gained increasing attention due to their potential in real-time health monitoring applications. However, the environmental impact and waste associated with non-recyclable materials used in these devices remain critical challenges. This study investigates the reprocessing and recyclability of flexible strain sensors based on Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanocomposites reinforced with carbon nanotubes (CNT) and graphene nanoplatelets (GNP). The nanocomposites are subjected to multiple recycling cycles using a solvent casting method, and their electrical and electromechanical properties are thoroughly analyzed. Microstructural characterization revealed improved nanoparticle dispersion with recycling, albeit with distinct behavior for CNT and GNP due to differences in aspect ratio and geometry. Electrical tests demonstrated a reduction in conductivity for CNT-based sensors due to nanoparticle breakage, while GNP-based sensors exhibited stable conductivity. Electromechanical tests indicated enhanced sensitivity after recycling, with GNP-based sensors showing superior robustness. Proof-of-concept tests, including monitoring knee joint movements and breathing patterns, validated the functionality of recycled sensors in health monitoring applications. The findings highlight the potential of reprocessed PVDF-HFP nanocomposite sensors as sustainable, high-performance materials for wearable electronics.
Sorbitol dehydration in 1,4-dioxane: Study of reaction conditions and kinetic analysis including mass transfer control
Autores:
Blanco-Cejas, J., Fernández-Ruiz, I., Hernández, B., Gutiérrez-Sánchez, P., Montaña, M., García, B., Bautista, L.F., Moreno, J., & Iglesias, J.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Catalysis Today / 2025 / Q1
This work assesses the influence of temperature, catalyst loading and water content on the dehydration of sorbitol to isosorbide using a commercially available porous strong acid resin (Amberlyst A70). The results from the catalytic tests show that the presence of water critically drops the reaction efficiency. Water not only participates in the dehydration reaction but also interacts with the sulfonic acid groups of the catalyst, competing for the adsorption to the catalytic sites with the substrate and intermediate products, varying the performance of the sulfonic acid resin. This has a strong influence on the kinetics of the transformation, so that a comprehensive assessment of different kinetic models for heterogeneous catalytic systems evaluating the role of saturation of catalytic sites, different adsorption isotherms, and different controls in the mass transfer has been carried out. Among all the studied alternatives, the model that describes the best the reaction performance is a Langmuir-Hinshelwood-Hougen-Watson model with saturation on the catalytic sites featured by mass transfer control in the desorption of the intermediate and final products. Despite the experimental tests have been performed in stirred tanks and other studies have not addressed mass transfer from the pores to the solvent core, the control mostly occurs at the catalyst pores. This is particularly observed for the sorbitans acting as intermediate products since they suffer from limitations in desorption and the latter adsorption to continue with the reaction to sorbitans. This study sheds light on the behaviour of strong cation exchange resins as heterogeneous acid catalysts in dehydration reactions, quite common transformations, specially important in the conversion of highly oxygenated biomass-derived molecules.
Spherical
C18-functionalized ordered mesoporous silica packed on micro-solid phase
extraction cartridges for simultaneous determination of twenty-three
alkaloids in flower extract supplements
Autores:
Fernández-Pintor, B., Gañán, J., Pérez-Quintanilla, D., Morante-Zarcero, S., & Sierra, I.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Advances In Sample Preparation / 2025 / Q2
A spherical ordered mesoporous silica functionalized with octadecylsilane ligand (SM-C18) was successfully synthesized and characterized, showing 647 m2/g of surface area, 45 Å of pore size, 4–6 μm of particle diameter and 0.37 mmol/g of functionalization degree. 1.5 mg of SM-C18 were packed into EPREP micro-solid phase extraction (µSPEed) cartridges for use with a handheld programmable digital analytical syringe (digiVOL®) to develop a sample preparation protocol for the analysis of two tropane (TAs) and twenty-one pyrrolizidine (PAs) alkaloids. The SM-C18 demonstrated greater retention capacity compared with commercial C18/hydrophilic amorphous silica sorbent. The optimized extraction conditions were as follows: 100 µL of methanol (2 cycles) and 100 µL of H2O (2 cycles) for conditioning, 100 µL of H2O-reconstituted sample (10 cycles), for a total of 1 mL of sample loaded, and 100 µL of methanol (2 cycles) for elution, followed by subsequent analysis by UHPLC-MS/MS. The method was successfully validated, showing good recoveries ranging between 91 and 97 %, low quantification limits and absence of matrix effect for the twenty-tree alkaloids. Additionally, cartridges packed with SM-C18 material allow for better reusability compared to the commercial material, as it has been demonstrated that they can be used for at least 75 extractions. This significantly enhances the method's sustainability. Finally, it was applied to 25 samples of flower extract supplements (FES). In two different batches of the sample obtained from Convolvulus arvensis flowers (FES4a and FES4b), atropine and scopolamine were quantified.
Surface
topography analysis in cold spray additive manufacturing
Autores:
Sirvent, P., Lozano, A., Garrido-Maneiro, M. A., Poza, P., Vaz, R. F., Albaladejo-Fuentes, V., & Cano, I. G.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Precision Engineering / 2025 / Q1
Additive manufacturing, and particularly the cold spray technology for additive manufacturing (CSAM), is fast becoming a key technology to produce components in an efficient and environmentally friendly manner. This method usually requires a final rectification to generate specific surface topographies. The novelty of this paper is related to the capabilities of the CSAM technique to control the surface topography of the samples. Thus, this work investigates the topography of CSAM samples and its correlation with the processing parameters. Pure Al and Ti samples were manufactured following two different deposition strategies: traditional and metal knitting. This last strategy constitutes a promising alternative for CSAM to obtain near-net-final shape components. The topography was analyzed by confocal microscopy considering the form, waviness, and roughness components. Moreover, the microstructure and mechanical properties of the samples were also investigated in order to assure reliable freestanding CSAM deposits. Results showed that the waviness was controlled by the spraying line spacing, and that the waviness and roughness profiles of the metal knitting samples presented the largest wavelengths regardless the material. The metal knitting method generated samples with higher thickness and porosity than the traditional strategy, while the mechanical properties at the local scale were not varied. The study highlights the CSAM technology potential for controlling the deposit's surface topography.
Synthesis
of ZIF-8 and ZIF-L on carbon fiber fabric for supercapacitor structural
electrodes
Autores:
Artigas‐Arnaudas, J., Sánchez, M., & Ureña, A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Polymer Composites / 2025 / Q1
One potential solution to the problem of energy storage in certain transportation vehicles is the development of multifunctional materials. Specifically, structural supercapacitors offer a combination of mechanical strength and energy storage capabilities, which could replace vehicle components and reduce overall vehicle weight. However, structural electrodes made from carbon fiber face a significant limitation due to their low specific surface area. This study examines the direct synthesis of metal-organic frameworks on the surface of carbon fibers. Structures such as ZIF-8 and ZIF-L can be easily synthesized from the same metal-organic precursors and exhibit high surface areas, making them ideal for this application. Both ZIF structures form a continuous coating on the carbon fiber, increasing the specific surface area of the electrodes. For the ZIF-8 structure, the coating achieves a thickness of 1 μm and a specific surface area of 30.24 m2/g. In contrast, the sheet-like geometry of the ZIF-L results in greater thicknesses, though with a lower specific surface area of only 0.7 m2/g. The potential use of these electrodes in supercapacitor devices has been demonstrated through the assembly of structural supercapacitors with a polymeric solid electrolyte. The supercapacitor with ZIF-8 electrodes has achieved a specific capacitance of 7.78 mF/g. Despite the limitations associated with internal resistance, all structural electrodes have shown stability over charge and discharge cycles.
Tailoring
the preparation of USY zeolite with uniform mesoporosity for improved
catalytic activity in phenol/isopropanol alkylation
Autores:
Molina, C., Abdrassilova, A., Ávila, M., Alonso-Doncel, M., Cueto, J., Gómez-Pozuelo, G., Briones, L., Botas, J., Serrano, D., Peral, A., & Escola, J.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Microporous And Mesoporous Materials / 2025 / Q1
The preparation of hierarchical USY zeolite, exhibiting uniform mesoporosity and high Si/Al atomic ratio (48–52), has been investigated by means of a surfactant/ammonia post-treatment applied to a commercial USY sample. The procedure involved the use of temperatures within 40–135 °C, a low ammonia concentration solution (0.05 N) and hydrothermal synthesis times of 20 h. When working at 40–80 °C, the obtained USY samples exhibit enhanced intraparticular mesoporosity (324–418 m2 g−1), showing increasingly uniform mesopores around 4.0 nm, while holding a remarkable zeolitic microporosity (413–363 m2 g−1). In contrast, higher temperatures resulted in a steady abatement of crystalline zeolitic domains, with a total collapse of the zeolite structure at 135 °C. These hierarchical USY materials were tested in the alkylation of phenol with isopropanol, wherein one of the obtained products, e.g. 2,6-diisopropylphenol (Propofol), is the most important intravenous anaesthetic in the market. Interestingly, the generation of the uniform mesoporosity in USY samples led to an enhancement of both the phenol conversion and the selectivity towards C-alkylation products. Thus, the sample treated at 60 °C (USY-60) gave rise to the highest selectivity towards C-alkylation products (84 %) and poly-alkylphenols formation (72 %), with an encouraging selectivity towards 2,6-diisopropylphenol (43 %).
The notable features of mesoporous aluminosilicates as catalytic supports for hydrodearomatization and hydrodesulfurization of fuels
Autores:
Abdrassilova, A., Vassilina, G., Abdildina, K., Briones, L., Peral, A., & Escola, J.M.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Microporous And Mesoporous Materials / 2025 / Q1
Despite being discovered more than 25 years ago, mesoporous aluminosilicates are still very relevant materials, considering the huge number of publications appearing every year harnessing them. Their notable features such as high BET surface area, accessible mesopore size, mild acidity and tunable pore wall thickness have resulted in different successful catalytic applications. Additionally, different kinds of mesoporous aluminosilicates may be found in literature (MCM-41, MCM-48, HMS, SBA-15, SBA-16, etc.) that allow to tailor to certain extent some physicochemical properties such as the spatial group, mesopore size and dimension, the pore wall thickness and consequently the hydrothermal stability, for the wanted catalytic application. This review is focused on discussing the main characteristics of the most common mesoporous aluminosilicates and exploring their reported performance in literature as supports of bifunctional catalysts for the hydrodearomatization (HDA) and desulfurization (HDS) of fuels. Although their hydrothermal stability has always been questioned by their lack of crystallinity, several successful applications of both MCM-41 and SBA-15 as supports of bifunctional catalysts for HDA/HDS of model compounds such as dibenzothiophene (DBT) can be found in literature, which in some cases interestingly also point out the prolonged stability of the catalyst, leading towards high yields of fuels by its mild acidity. Additionally, supported metal catalysts over mesoporous aluminosilicates might be the basis for the preparation of advanced bulk metal hydroprocessing catalysts, by application of different etching strategies. Therefore, this review will show these promising catalytic outcomes that opens up the application of mesoporous aluminosilicates as supports of bifunctional catalysts devoted to HDA/HDS of not only model sulfur/aromatic compounds but true fuels as well such as those proceeding from Kazakhstan oil.
Towards greener furfural: evaluating the technical, economic and environmental feasibility of heterogeneous catalysis in biomass conversion
Autores:
Blanco, J., Agirre, I., Gandarias, I., Moreno, J., & Iglesias, J.
Tipo / Medio / Año de publicación / Quartile:
Artículo / RSC Sustainability / 2025 / Q1
Furfural is a key biomass-derived platform chemical with a large market volume, yet its production has largely been outsourced from Europe due to the high energy demand for reactor heating and the significant environmental impact of acidic waste generation. Current industrial processes, predominantly the Chinese Batch Process (CBP), rely on sulphuric acid as a catalyst and require extensive steam stripping, contributing significant environmental constraints. This study explores the feasibility of a more sustainable furfural production by evaluating an alternative process based on a heterogeneous acid catalyst. The proposed process integrates scale-up considerations to improve reactor performance, replacing steam stripping with nitrogen stripping and sulphuric acid with Amberlyst-70® as heterogeneous catalyst. A detailed process simulation, techno-economic analysis (TEA), and life cycle assessment (LCA) were conducted to compare the material and energy balances of both processes and to assess the viability of the heterogeneous catalytic process (HCP). Results indicate that the current selectivity of Amberlyst-70® is insufficient for technical feasibility, as a 5.5-fold improvement in furfural-to-tar selectivity is required to match the steam consumption of CBP. If this target is met, both processes exhibit similar minimum selling prices (>€3000 per t), although significantly above current market levels. However, the HCP presents a potential cost reduction pathway (<€1000 per t) through the valorisation of lignin and cellulose by-products, offering a competitive advantage. Environmental analysis highlights key benefits of the HCP, including a significant reduction in freshwater ecotoxicity by eliminating sulphuric acid and improved energy efficiency through enhanced process integration. Nonetheless, energy consumption and maize cob usage remain critical environmental hotspots. Overall, the study identifies catalyst selectivity as the key bottleneck preventing the implementation of the HCP. Further development of a more selective and stable heterogeneous catalyst, alongside integrated biorefinery strategies, could enable the competitive and sustainable production of furfural.
Zr-modified
USY zeolite as an efficient catalyst for the production of bio-jet fuel
precursors from levulinic acid and furfural in the absence of solvent
Autores:
Uricochea, N., Uzquiano, V., Paniagua, M., Morales, G., & Melero, J. A.
Tipo / Medio / Año de publicación / Quartile:
Artículo / Catalysis Today / 2025 / Q1
The high potential of using levulinic acid and furfural as platform molecules for the production of oxygenated adducts suitable as precursors for SAF synthesis is studied through the aldol condensation of both molecules. The research is the first-time demonstration of solventless acid-catalysed levulinic acid/furfural aldol condensation. The catalytic performance of a commercial H-USY zeolite and two post-synthetic variations thereof, with different dealumination degree and Zr loading, is analyzed, aiming at tuning the acid catalytic properties. The catalyst with an almost complete Al removal accompanied by the highest Zr wt% (Zr-USY-2) gave the best results in terms of selective conversion of furfural, pointing out to the Lewis acid sites as the main active sites to promote the aldol condensation reaction. An experimental design allowed to identify the optimal LA/FAL molar ratio (9/1) and reaction temperature (140 °C), while catalyst loading presented a minor significance. The optimization of the reaction parameters allowed to achieve a maximum furfural conversion of 88 %, combined with a yield towards the desired C10 adducts of 55 %. Furthermore, despite the catalytic performance of this material is slightly impaired in consecutive reaction cycles, it can be recovered with a thermal regeneration step, indicating a good reusability.
2024 - 89 artículos Q1 (84%); Q2 (14%) Q3 (2%)
W-EUROFER97 brazed joints using Ag, Au, and Cu-based fillers for energy applications: A microstructural and mechanical study
Díaz-Mena, V., De Prado, J., Izaguirre, I., Carreras, J., Sánchez, M., Rieth, M., & Ureña, A.
Revista: Journal Of Nuclear Materials
Wettability and microstructural evolution of copper filler in W and EUROFER brazed joints
Izaguirre I., de Prado J., Sánchez M., Ureña A.
Revista: International Journal of Advanced Manufacturing Technology
Valorization of hemicellulosic sugars to sugar alcohols by Raney nickel mediated hydrogen transfer
Use of graphitic carbon nitrides as solar-light-driven photocatalysts for the reduction of p-nitrobenzoic acid
López-Timoner R., Arques A., Amat A.M., Plaza J., Arencibia A., López-Muñoz M.J.
Revista: Catalysis Today
Unveiling the Synthesis, Hirshfeld Surface Insights, and Interesting Photocatalytic Ability of [C7H8N3]6(BiBr6)2·3H2O
Ultrasonication Influence on the Morphological Characteristics of Graphene Nanoplatelet Nanocomposites and Their Electrical and Electromagnetic Interference Shielding Behavior
Toward flexible piezoresistive strain sensors based on polymer nanocomposites: a review on fundamentals, performance, and applications
Temperature-dependent synergistic self-healing in thermoplastic-thermoset blends: Unraveling the role of thermoplastics and dynamic covalent networks
Jiménez-Suárez A., Buendía Sánchez G., Prolongo S.G.
Revista: Journal of Materials Research and Technology
Sustainable Electrically Conductive Bio-Based Composites via Radical-Induced Cationic Frontal Photopolymerization
Moraru, D., Cortés, A., Martinez-Diaz, D., Prolongo, S. G., Jiménez-Suárez, A., & Sangermano, M.
Revista: Polymers
Sustainable composite manufacturing from non-expiring carbon fiber/epoxy prepregs based on a vitrimeric matrix
Sánchez, J. G., Sánchez-Romate, X. X. F., González, L., Suárez, A. J., Prolongo, S. G.
Revista: Journal Of Manufacturing Processes
Study of Mesostructured CeO2 Synthesis via Nanocasting Using SBA-15 as a Template: Influence of the Cerium Precursor
De la Calle, Á. M., Vizcaíno, A. J., Carrero, A., Calles, J. A., & Megía, P. J.
Revista: International Journal Of Molecular Sciences
Study of ilmenite and zero valent iron nanoparticles for persulfate activation in disinfection of wastewater
Pérez-Verde, A., García-Muñoz, P., López-Muñoz, M., & Rodríguez-Chueca, J.
Revista: Journal Of Environmental Chemical Engineering
Structure sensitivity in the formic acid-driven catalytic transfer hydrogenation of maleic acid to succinic acid over Pd/C catalysts
Orozco-Saumell, A., Retuerto, M., Alba-Rubio, A., Maireles-Torres, P., Iglesias, J., Mariscal, R., & Granados, M. L.
Revista: Journal Of Catalysis
Structural integrity of polymers processed by additive manufacturing techniques using residual strength diagrams
Solid-State Diffusion Bonding of Aluminum to Copper for Bimetallic Anode Fabrication
Smart electroactive self-repairable coating involving end-of-life aircraft prepregs by mechanical recycling
Espeute, E., Martinez-Diaz, D., Sánchez, P. V., Martín, Z., Del Rosario, G., Jiménez-Suárez, A., & Prolongo, S. G.
Revista: Journal Of Cleaner Production
Selective extraction of high-added value carboxylic acids from aqueous fermentative effluents with new hydrophobic eutectic solvents (HES)
Reticulated porous structures of La0.8Al0.2NiO3-δ perovskite for enhanced green hydrogen production by thermochemical water splitting
Pérez, A., Orfila, M., Díaz, E., Linares, M., Sanz, R., Marugán, J., Molina, R., Botas, J. A.
Revista: Catalysis Today
Recycling development and shaping of a thermo-reversible epoxy resin with partial contents of Diels-Alder bonds
Recyclable Multifunctional Nanocomposites Based on Carbon Nanotube Reinforced Vitrimers with Shape Memory and Joule Heating Capabilities
Cortés A., Sánchez-Romate X.F., Martinez-Diaz D., Prolongo S.G., Jiménez-Suárez A.
Revista: Polymers
Production of Methyl Lactate with Sn-USY and Sn-β: Insights into Real Hemicellulose Valorization
Jiménez-Martín J.M., EL Tawil-Lucas M., Montaña M., Linares M., Osatiashtiani A., Vila F., Alonso D.M., Moreno J., García A., Iglesias J.
Revista: ACS Sustainable Chem. Eng
Predicting the size of silver nanoparticles synthesised in flow reactors: Coupling population balance models with fluid dynamic simulations
Photoelectrochemical disinfection efficiency of WO3-based photoanodes: Development of multifunctional photoelectrocatalytic materials
Reddick C., Sotelo-Vazquez C., Tam B., Kafizas A., Reynolds K., Stanley S., Creasey G., Hankin A., Pablos C., Marugán J.
Revista: Catalysis Today
Optimised phycoerythrin extraction method from Porphyridium sp. combining imidazolium-based ionic liquids
Piera, A., Espada, J. J., Morales, V., Rodríguez, R., Vicente, G., & Bautista, L. F.
Revista: Heliyon
Nutrient removal in floating and vertical flow constructed wetlands using aluminium dross: An innovative approach to mitigate eutrophication
Mittal, Y., Srivastava, P., Kumar, N., Tripathy, B. C., Martinez, F., Yadav, A. K.
Revista: Bioresource Technology
Novel Smart Wearable Sensors Based on PVDF Reinforced With CNTs for Human Motion Monitoring
Díaz-Mena, V., Sánchez-Romate, X. F., Martinez-Diaz, D., Sánchez, M., Ureña, A.
Revista: IEEE Sensors Journal
Novel Recycling of Epoxy Thermosets by Blending with Reversible Diels–Alder Epoxy Resin
Novel 3D electro-Fenton reactor based on a catalytic packed bed reactor of perovskite/carbon microelectrodes for the removal of carbamazepine in wastewater
Cruz del Álamo A., Puga A., Diaz Soares C.M., Pariente M.I., Pazos M., Molina R., Sanromán M.A., Martínez F., Delerue-Matos C.
Revista: Journal of Environmental Chemical Engineering
Nanostructured Transition Metal Oxides on Carbon Fibers for Supercapacitor and Li-Ion Battery Electrodes: An Overview
González-Banciella, A., Martinez-Diaz, D., Sánchez, M., Ureña, A.
Revista: International Journal Of Molecular Sciences
MXene multi-functionalization of polyrotaxane based PCMs and the applications in electronic devices thermal management
Yin G.Z., López A.M., Collado I., Vázquez-López A., Ao X., Hobson J., Prolongo S.G., Wang D.Y.
Revista: Nano Materials Science
MOF-derived α-Fe2O3@Fe3O4 on carbon fiber fabric for lithium-ion anode applications
González-Banciella A., Martinez-Diaz D., de Prado J., Utrilla M.V., Sánchez M., Ureña A.
Revista: Journal of Energy Storage
Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
Moriche, R., Artigas‐Arnaudas, J., Chetwani, B., Sánchez, M., Campo, M., Prolongo, M. G., Rams, J., Prolongo, S. G., & Ureña, A.
Revista: Polymer Composites
Metallisation of additive manufactured polyamide 12 by low pressure cold spray
Mechanical recycling and electro-thermal welding of epoxyvitrimer nanocomposites
M-Doped (M = Zn, Mn, Ni) Co-MOF-Derived Transition Metal Oxide Nanosheets on Carbon Fibers for Energy Storage Applications
González-Banciella, A., Martínez-Diaz, D., De Hita, A., Sánchez, M., & Ureña, A.
Revista: Nanomaterials
Magnetic induction heating-assisted synthesis of biodiesel using an alumina/iron oxide nanocatalyst
Kinetics of the valorization of hexoses with Sn-USY catalysts in methanolic media: glycosidation vs. retroaldol cleavage
Jiménez-Martín, J. M., Tawil-Lucas, M. E., Jerez, C. G., Moreno, J., Garcia, A., Hernandez, B., & Iglesias, J.
Revista: Reaction Chemistry & Engineering
Insights from dispersion in carbon nanotubes-based poly(vinylidene fluoride-co-hexafluoropropylene) wearable sensors via solvent casting
Influence of the TiO2 crystalline phase on the performance of UVA/brookite/persulfate and UVA/anatase/persulfate systems for the degradation of isothiazolinones in aqueous matrices
Gómez-Rodríguez P., van Grieken R., López-Muñoz M.J.
Revista: Journal of Environmental Chemical Engineering
Improving the food safety of bakery products by simultaneously monitoring the occurrence of pyrrolizidine, tropane and opium alkaloids
Hybrid Solid Polymer Electrolytes Based on Epoxy Resins, Ionic Liquid, and Ceramic Nanoparticles for Structural Applications
Graphene Oxide/Polylactic Acid-Based Face Mask to Combat H3N2: A Strategy against Influenza
Vázquez-López A., de la Vega J., Collado I., Carmona F.J., Prádanos P., Prolongo S.G., Wang D.Y.
Revista: ACS Applied Nano Materials
Global modeling of photochemical reactions in lake water: A comparison between triplet sensitization and direct photolysis
Fracture resistance of polyacrylamide-alginate hydrogels
Reinhards-Hervás C., Cajo A.J., Rico A., Salazar A., Rodríguez J.
Revista: Engineering Fracture Mechanics
Fibreglass membrane chemically modified with amino-functionalised SBA-15 and its application in solid-phase extraction to determine macrolide antibiotics in eggs
González-Gómez, L., Morante-Zarcero, S., Pérez-Quintanilla, D., González, G. P., Garcinuño, R. M., Hernando, P. F., Sierra, I.
Revista: Microchemical Journal
Fe-N doped carbon materials from oily sludge as electrocatalysts for alkaline oxygen reduction reaction
Jerez S., Pedersen A., Ventura M., Mazzoli L., Pariente M.I., Titirici M., Melero J.A., Barrio J.
Revista: Electrochimica Acta
Fast and green methodology based on miniaturised liquid–liquid extraction with a hydrophobic natural deep eutectic solvent of opium alkaloids from poppy seed beverages
Casado-Hidalgo, G., Cordo, R., Pérez-Quintanilla, D., Morante-Zarcero, S., Gómara, B., Ramos, L., & Sierra, I.
Revista: Microchemical Journal
Exploring W-EUROFER brazed joints: S/TEM and nanoindentation analysis following post-brazing tempering treatment
Izaguirre, I., Roldán, M., De Prado, J., Bonache, V., Sánchez, M., & Ureña, A.
Revista: Journal Of Nuclear Materials
Exploring MOF-Nanoparticle Hybrids: Enhanced Performance in Contaminant Photodegradation and C–C Catalytic Coupling
García-Valdivia, A. A., Méndez-Arriaga, J. M., Ortiz-Bustos, J., Gómez-Ruiz, S.
Revista: Journal Of Inorganic And Organometallic Polymers And Materials
Exploring FAST Technique for Diffusion Bonding of Tungsten to EUROFERE97 in DEMO First Wall
Exploration and optimization of copper-based alloys incorporating amorphizing elements for heat transfer applications
Izaguirre I., de Prado J., Rosero-Romo JJ., Sánchez M., Salazar D., Ureña A.
Revista: Materials Characterization
Evaluating the stability of tropane and opium alkaloids during baking in homemade gluten-free poppy seed crackers
González-Gómez, L., Casado-Hidalgo, G., Gañán, J., Pérez-Quintanilla, D., Morante-Zarcero, S., & Sierra, I.
Revista: LWT
A Review of Additive Manufacturing of Biodegradable Fe and Zn Alloys for Medical Implants Using Laser Powder Bed Fusion (LPBF)
Limón, I., Bedmar, J., Fernández-Hernán, J. P., Multigner, M., Torres, B., Rams, J., & Cifuentes, S. C.
Revista: Materials
Analysis of bio-based epoxy resins: Impact of amine hardeners on thermal, thermomechanical, optical and electrical properties of epoxidized resveratrol with high Tg
Isarn, I., Collado, I., Jiménez-Suárez, A., & Prolongo, S. G.
Revista: Reactive And Functional Polymers
Analysis of Causes of Delays and Cost Overruns as Well as Mitigation Measures to Improve Profitability and Sustainability in Turnkey Industrial Projects
Álvarez-Pozo AH, Parma-García MI, Ortiz-Marcos I, Bautista LF, Atanes-Sánchez E.
Revista: Sustainability
Assessing Environmental Sustainability of Phytoremediation to Remove Copper from Contaminated Soils
Assessing the circularity of post-consumer HDPE milk bottles through open-loop recycling and their environmental impact
Álvarez-Pozo AH, Parma-García MI, Ortiz-Marcos I, Bautista LF, Atanes-Sánchez E.
Revista: Cleaner Environmental Systems
Assessment of Photoactivated Chlorophyllin Production of Singlet Oxygen and Inactivation of Foodborne Pathogens
Pablos, C., Marugán, J., Van Grieken, R., Hamilton, J. W. J., Ternan, N. G., & Dunlop, P. S. M..
Revista: Catalysis
Bio-based epoxy vitrimer with inherent excellent flame retardance and recyclability via molecular design
Zhou MH, Ao X, Islam M, Liu YY, Prolongo SG, Wang DY.
Revista: International Journal of Biological Macromolecules
Can mild alkaline pretreatment simultaneously enhance the antioxidant capacity of Beta-carotene extracts and biomethane yields in a sustainable Dunaliella salina biorefinery?
Águila-Carricondo, P., García-García, R., De la Roche, J. P., Galán, P. L., Bautista, L. F., & Vicente, G.
Revista: Biomass and Bioenergy
Carbonaceous
materials from a petrol primary oily sludge: Synthesis and catalytic
performance in the wet air oxidation of a spent caustic effluent
Jerez, S., Ventura, M., Martínez, F., Pariente, M. I., & Melero, J. A.
Revista: Journal of Environmental Management
Catalytic Advantages of SO3H-Modified UiO-66(Zr) Materials Obtained via Microwave Synthesis in Friedel-Crafts Acylation Reaction
Bauza, M., Leo, P., Cabello, C. P., Martin, A., Orcajo, G., Palomino, G. T., & Martinez, F.
Revista: Inorganic Chemistry
Cathodic electrophoretic deposition (EPD) of two-dimensional colloidal Ni(OH)2 and NiO nanosheets on carbon fibers (CF) for binder-free structural solid-state hybrid supercapacitor
Urra Sanchez O, Artigas-Arnaudas J, Sánchez-Herencia AJ, Ferrari B, Ureña A, Sánchez M.
Revista: Journal
of Energy Storage
Characterization
of conductive particle dispersion in textile coatings through Joule's effect
monitoring analysis
Ruiz-Calleja
T, Jiménez-Suárez A, Calderón-Villajos R, Prolongo SG.
Revista: Textile
Research Journal
Chiral
HPLC-MS/MS determination of hyoscyamine enantiomers in baby herbal infusions
after preconcentration with sulfonic HMS mesostructured silica synthesized by
co-condensation
Combining
de-icing and self-healing for wind blades through an innovative multilayer
coating approach
Cortés, A., Esperanza, A., Gómez‐Sánchez, J., Sanchez‐Romate, X. F., Prolongo, S. G., & Jiménez‐Suárez, A.
Revista: Polymer Composites
Comprehensive
evaluation of a novel pilot-scale UVA-LED photoreactor for water treatment
applications: Characterization, catalytic efficiency, energy performance and
economic viability
Comprehensive
Study on Endocrine Disruptor Removal from Wastewater Using Different
Microalgae Species
García, N., Rodríguez, R., Vicente, G., Espada, J. J., & Bautista, L. F.
Revista: Applied Sciences
Determination
of atropine and scopolamine in honey using a miniaturized polymer-based
solid-phase extraction protocol prior to the analysis by HPLC-MS/MS
Fernández-Pintor B, Paniagua G, Gañán J, Morante-Zarcero S, Garcinuño RM, Fernández P, Sierra I.
Revista: Polymer
Development
and Characterization of SBA-15 Imprinted Polymers for Spiramycin Analysis
González-Gómez, L., Morante-Zarcero, S., Pérez-Quintanilla, D., González, G. P., Garcinuño, R. M., Hernando, P. F., & Sierra, I.
Revista: Separations
Development
of a Green, Quick, and Efficient Method Based on Ultrasound-Assisted
Extraction Followed by HPLC-DAD for the Analysis of Bioactive Glycoalkaloids
in Potato Peel Waste
Development
of Gluten-Free Bread Based on Maize and Buckwheat and Enriched with Aromatic
Herbs and Spices
Ruiz-Aceituno
L, Casado N, Arriero-Romo E, Morante-Zarcero S, Lázaro A, Sierra I.
Revista:
Applied
Sciences
Año de publicación: 2024
Direct
Synthesis of MOF-74 Materials on Carbon Fiber Electrodes for Structural
Supercapacitors
Effect
of Sonication Batch on Electrical Properties of Graphitic-Based PVDF-HFP
Strain Sensors for Use in Health Monitoring
Effect of various culinary treatments on the glycoalkaloid content of potato peel
Martínez-García, I., Pérez-Quintanilla, D., Morante-Zarcero, S., & Sierra, I.
Revista:
Journal Of Food Composition And Analysis
Effects
of Building Direction, Process Parameters and Border Scanning on the
Mechanical Properties of Laser Powder Bed Fusion AlSi10Mg
Efficient
Self-Condensation of Cyclohexanone into Biojet Fuel Precursors over Sulfonic
Acid-Modified Silicas: Insights on the Effect of Pore Size and Structure
Martín, A., Arribas-Yuste, E., Paniagua, M., Morales, G., & Melero, J. A.
Revista:
ACS
Sustainable Chemistry & Engineering
Efficient visible-light-driven photocatalysis: simultaneous degradation of multiple pollutants with bismuth oxyhalide solid solutions
Pérez,
Y., Villena, H. P., Ortiz-Bustos, J., Gómez-Ruiz, S., Del Hierro, I.
Revista:
Environmental
Science Water Research & Technology
Electromechanical
Properties of Smart Vitrimers Reinforced with Carbon Nanotubes for SHM
Applications
Enhancing
efficiency and sustainability of digital light processing 3D-Printing by
novel two-stage processing of carbon nanotube reinforced nanocomposites
Cortés
A, Bañón-Veracruz M, Jiménez-Suarez A, Campo M, Prolongo MG, Prolongo SG.
Revista:
Journal
of Materials Research and Technology
Enhancing the recyclability of ELV plastic bumpers: Characterization of molecular, morphological, rheological, mechanical properties and ageing degradation
Juan, R., Expósito, M. T., Paredes, B., Lechuga, D., Martínez, C., Cardil, A., Villegas, L. A., Ramos, J., Domínguez, C., Vega, J. F., Van Grieken, R., & García-Muñoz, R. A.
Revista:
Polymer Degradation And Stability
Erosion
behaviour of cold sprayed stainless-steel coatings for civil infrastructures:
An energetic approach
Exploration
and optimization of copper-based alloys incorporating amorphizing elements
for heat transfer applications
Izaguirre
I, de Prado J, Rosero-Romo JJ, Sánchez M, Salazar D, Ureña A.
Revista:
Materials
Characterization
Año de publicación: 2024
Exploring
FAST Technique for Diffusion Bonding of Tungsten to EUROFERE97 in DEMO First
Wall
Sánchez
M, de Prado J, Izaguirre I, Galatanu A, Ureña A.
Revista:
Materials
Año de publicación: 2024
Exploring MOF-Nanoparticle Hybrids: Enhanced Performance in Contaminant Photodegradation and C–C Catalytic Coupling
García-Valdivia, A. A., Méndez-Arriaga, J. M., Ortiz-Bustos, J., Gómez-Ruiz, S.
Revista:
Journal of Inorganic and Organometallic Polymers and Materials
Año de publicación: 2024
Fibreglass membrane chemically modified with
amino-functionalised SBA-15 and its application in solid-phase extraction to
determine macrolide antibiotics in eggs
González-Gómez,
L., Morante-Zarcero, S., Pérez-Quintanilla, D., González, G. P., Garcinuño,
R. M., Hernando, P. F., Sierra, I.
Revista:
Microchemical
Journal
Año de publicación: 2024
Fracture
resistance of polyacrylamide-alginate hydrogels
Reinhards-Hervás
C, Cajo AJ, Rico A, Salazar A, Rodríguez J.
Revista:
Engineering
Fracture Mechanics
Año de publicación: 2024
Graphene
Oxide/Polylactic Acid-Based Face Mask to Combat H3N2: A Strategy against
Influenza
Vázquez-López
A, de la Vega J, Collado I, Carmona FJ, Prádanos P, Prolongo SG, Wang DY
Revista:
ACS
Applied Nano Materials
Año de publicación: 2024
Improving the food safety of bakery products by simultaneously monitoring the occurrence of pyrrolizidine, tropane and opium alkaloids.
Vera-Baquero, F. L., Casado, N., Morante-Zarcero, S., Sierra, I.
Revista:
Food Chemistry
Año de publicación: 2024
Influence
of the TiO2 crystalline phase on the performance of
UVA/brookite/persulfate and UVA/anatase/persulfate systems for the
degradation of isothiazolinones in aqueous matrices
Gómez-Rodríguez
P, van Grieken R, López-Muñoz MJ.
Revista:
Journal
of Environmental Chemical Engineering
Año de publicación: 2024
Insights from dispersion in carbon nanotubes-based poly(vinylidene fluoride-co-hexafluoropropylene) wearable sensors via solvent casting
Díaz‐Mena,
V., Sánchez‐Romate, X. F., Sánchez, M., Ureña, A.
Revista:
Polymer
Composites
Año de publicación: 2024
Investigating
the effect of different grinding conditions and methods on the concentration
of opium alkaloids in poppy seeds as a good reduction practice
Casado-Hidalgo
G, Morante-Zarcero S, Pérez-Quintanilla D, Sierra I.
Revista:
Journal
of Food Composition and Analysis
Año de publicación: 2024
Magnetic
induction heating-assisted synthesis of biodiesel using an alumina/iron oxide
nanocatalyst
Corrales-Pérez
B, Vicente G, del Puerto Morales M, Gallo-Cordova A.
Revista:
Fuel
Año de publicación: 2024
Mechanical
recycling and electro-thermal welding of epoxyvitrimer nanocomposites
Metallisation
of additive manufactured polyamide 12 by low pressure cold spray
Verdi D,
Merino-Millán D, Salazar A.
Revista:
Surface
and Coatings Technology
Año de publicación: 2024
Miniaturized
Analytical Strategy Based on μ-SPEed for Monitoring the Occurrence of
Pyrrolizidine and Tropane Alkaloids in Honey
Casado
N, Morante-Zarcero S, Sierra I.
Revista:
ACS
Journal of Agricultural and Food Chemistry
Año de publicación: 2024
MOF-derived
α-Fe2O3@Fe3O4 on carbon fiber fabric for lithium-ion anode applications
González-Banciella
A, Martinez-Diaz D, de Prado J, Utrilla MV, Sánchez M, Ureña A.
Revista:
Journal
of Energy Storage
Año de publicación: 2024
MXene
multi-functionalization of polyrotaxane based PCMs and the applications in
electronic devices thermal management
Yin GZ,
López AM, Collado I, Vázquez-López A, Ao X, Hobson J, Prolongo SG, Wang DY.
Revista:
Nano
Materials Science
Año de publicación: 2024
Nanostructured Transition Metal Oxides on Carbon
Fibers for Supercapacitor and Li-Ion Battery Electrodes: An Overview
González-Banciella,
A., Martinez-Diaz, D., Sánchez, M., Ureña, A.
Revista:
International
Journal Of Molecular Sciences
Año de publicación: 2024
Novel 3D
electro-Fenton reactor based on a catalytic packed bed reactor of
perovskite/carbon microelectrodes for the removal of carbamazepine in
wastewater
Cruz del
Álamo A, Puga A, Diaz Soares CM, Pariente MI, Pazos M, Molina R, Sanromán MA,
Martínez F, Delerue-Matos C.
Revista:
Journal
of Environmental Chemical Engineering
Año de publicación: 2024
Novel Smart Wearable Sensors Based on PVDF
Reinforced With CNTs for Human Motion Monitoring
Díaz-Mena, V., Sánchez-Romate, X. F., Martinez-Diaz, D., Sánchez, M., Ureña, A.
Revista:
IEEE
Sensors Journal
Año de publicación: 2024
Nutrient removal in floating and vertical flow constructed wetlands using aluminium dross: An innovative approach to mitigate eutrophication
Mittal, Y., Srivastava, P., Kumar, N., Tripathy, B. C., Martinez, F., Yadav, A. K.
Revista: Bioresource
Technology
Año de publicación: 2024
Production
of Methyl Lactate with Sn-USY and Sn-β: Insights into Real Hemicellulose
Valorization
Jiménez-Martín
JM, EL Tawil-Lucas M, Montaña M, Linares M, Osatiashtiani A, Vila F, Alonso
DM, Moreno J, García A, Iglesias J.
Revista:
ACS
Sustainable Chem. Eng
Año de publicación: 2024
Recyclable
Multifunctional Nanocomposites Based on Carbon Nanotube Reinforced Vitrimers
with Shape Memory and Joule Heating Capabilities
Cortés
A, Sánchez-Romate XF, Martinez-Diaz D, Prolongo SG, Jiménez-Suárez A.
Revista:
Polymers
Año de publicación: 2024
Recycling
development and shaping of a thermo-reversible epoxy resin with partial
contents of Diels-Alder bonds
Reticulated
porous structures of La0.8Al0.2NiO3-δ perovskite for enhanced green
hydrogen production by thermochemical water splitting
Pérez, A., Orfila, M., Díaz, E., Linares, M., Sanz, R., Marugán, J., Molina, R., Botas, J. A.
Revista:
Catalysis
Today
Año de publicación: 2024
Simultaneous
Determination of 23 Pyrrolizidine and Tropane Alkaloids in Infusions from Dry
Edible Flowers Using Optimized μSPEed® Microextraction Prior to Their
Analysis by UHPLC-IT-MS/MS
Solid-State Diffusion Bonding of Aluminum to Copper for Bimetallic Anode Fabrication
De Prado, J., Børresen, B. T., Utrilla, V., & Ureña, A.
Revista: Materials
Año de publicación: 2024
Structural integrity of polymers processed by additive manufacturing techniques using residual strength diagrams
Cano, A., Salazar, A., & Rodríguez, J.
Revista:
Theoretical And Applied Fracture Mechanics
Año de publicación: 2024
Sustainable composite manufacturing from
non-expiring carbon fiber/epoxy prepregs based on a vitrimeric matrix
Sánchez,
J. G., Sánchez-Romate, X. X. F., González, L., Suárez, A. J., Prolongo, S. G.
Revista:
Journal
Of Manufacturing Processes
Año de publicación: 2024
Temperature-dependent
synergistic self-healing in thermoplastic-thermoset blends: Unraveling the
role of thermoplastics and dynamic covalent networks
Jiménez-Suárez
A, Buendía Sánchez G, Prolongo SG.
Revista:
Journal
of Materials Research and Technology
Año de publicación: 2024
Toward
flexible piezoresistive strain sensors based on polymer nanocomposites: a
review on fundamentals, performance, and applications
del
Bosque A, Sánchez-Romate XF, Sánchez M, Ureña A.
Revista:
Nanotechnology
Año de publicación: 2024
Ultrasonication
Influence on the Morphological Characteristics of Graphene Nanoplatelet
Nanocomposites and Their Electrical and Electromagnetic Interference
Shielding Behavior
Collado
I, Jiménez-Suárez A, Vázquez-López A, del Rosario G, Prolongo SG.
Revista:
Polymers
Año de publicación: 2024
Unveiling
the Synthesis, Hirshfeld Surface Insights, and Interesting Photocatalytic
Ability of [C7H8N3]6(BiBr6)2·3H2O
Walha I,
Díaz-García D, Gómez-Ruiz S, Zouari F.
Revista:
Journal
of Molecular Structure
Año de publicación: 2024
Use of
graphitic carbon nitrides as solar-light-driven photocatalysts for the
reduction of p-nitrobenzoic acid
López-Timoner
R, Arques A, Amat AM, Plaza J, Arencibia A, López-Muñoz MJ.
Revista:
Catalysis
Today
Año de publicación: 2024
Valorization
of hemicellulosic sugars to sugar alcohols by Raney nickel mediated hydrogen
transfer
García
B, Montaña M, González MA, Moreno J, Iglesias J.
Revista:
Catalysis
Today
Año de publicación: 2024
Wettability
and microstructural evolution of copper filler in W and EUROFER brazed joints
Izaguirre
I, de Prado J, Sánchez M, Ureña A.
Revista:
The
International Journal of Advanced Manufacturing Technology
Año de publicación: 2024