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    Listar por autor "Marrero-López, David"

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    Mostrando ítems 1-20 de 33

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      • Active layers based on vertically aligned nanostructures for SOFC applications 

        Zamudio-García, Javier; Chiabrera, Francesco; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga; Pryds, Nini; Esposito, Vincenzo[et al.] (2022-06-28)
        One of the most recent strategies to enhance the electrode performance is preparing composite materials leading to an increase of the triple-phase-boundary (TPB) length. In this work, thin films VANs based on ...
      • Ajuste de las propiedades estructurales de molibdatos de lantano a través de la modificación de los entramados catiónicos y aniónicos 

        Porras-Vázquez, José Manuel; Bergillos-Ruíz, Marta; López-Vergara, Adrián; Marrero-López, DavidAutoridad Universidad de Málaga; Losilla, Enrique R. (2018-06-28)
        Los materiales basados en molibdatos de lantano, con fórmula general La6-xMoO12-, son candidatos a membranas de separación de hidrógeno debido su conductividad electrónica y protónica. Estos cristalizan en diferentes ...
      • Boosting the Performance of La0.8Sr0.2MnO3-δ Electrodes by The Incorporation of Nanocomposite Active Layers 

        Zamudio-García, Javier; Caizán Juanarena, Leire; Porras-Vázquez, José M.; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (Wiley, 2022-07-07)
        The use of active layers is a promising strategy to improve the properties of air electrodes for solid oxide fuel cells (SOFCs). In this work, La0.8Sr0.2MnO3-δ is combined with different oxide ion conductors Ce0.9Gd0.1O1.95, ...
      • Ce0.8Gd0.2O2‐δ / La0.6Sr0.4CoO3 Heterostructures prepared by pulsed laser deposition 

        Dos Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramirez-Losilla, EnriqueAutoridad Universidad de Málaga; Marrero-López, DavidAutoridad Universidad de Málaga (2018-09-14)
        Oxide interfaces have received greater attention due to the possibility to obtain properties that are very different from bulk materials. Due to the wide variety of electronic and ionic phenomena than can be detected at ...
      • Compatibility and performance of SOFCs based on lanthanum tungstates 

        Dos Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Zayas-Rey, María José; Ramirez-Losilla, EnriqueAutoridad Universidad de Málaga; Marrero-López, DavidAutoridad Universidad de Málaga (2015-07-10)
        Rare-earth tungstates with general composition “Ln6WO12” have attracted great attention in last few years due to their relatively high mixed proton-electron conductivity [1, 2]. One of the main ad-vantages of these ...
      • Desarrollo y control microestructural en materiales para pilas de combustible de óxidos sólidos 

        Dos Santos-Gómez, Lucía (UMA Editorial, 2018-10-17)
        Las pilas de combustible de óxidos sólidos (SOFCs) son una de las alternativas más prometedoras para producir energía eléctrica de manera eficiente y respetuosa con el medio ambiente. Durante la fabricación de una SOFC es ...
      • Durability and performance of CGO barriers and LSCF cathode deposited by spray-pyrolysis 

        Dos Santos-Gómez, Lucía; Hurtado, Javier; Porras-Vázquez, José Manuel; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (Elsevier, 2018-03-19)
        Ce0.9Gd0.1O1.95 (CGO) protective layers are prepared by two different methods to prevent the reaction between the Zr0.84Y0.16O1.92 (YSZ) electrolyte and the La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathode. In the first method, ...
      • Effect of preparation conditions on the polymorphism and transport properties of lanthanum molybdates 

        Porras-Vázquez, José Manuel; López-Vergara, Adrián; Infantes-Molina, AntoniaAutoridad Universidad de Málaga; Canales-Vázquez, J.; Cabeza-Diaz, AurelioAutoridad Universidad de Málaga; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga[et al.] (2017-10-24)
        In this work, La6MoO12-based compounds were investigated as part of a new family of materials very competitive as hydrogen separation membranes [1,2]. La5.4MoO11.1 was synthesized by the freeze-drying precursor method and ...
      • Effect of the modification of the cationic and anionic framework on the structural and electrical properties of lanthanum molybdates 

        López-Vergara, Adrián; Bergillos-Ruíz, Marta; Porras-Vázquez, José Manuel; Marrero-López, DavidAutoridad Universidad de Málaga; Losilla, Enrique R. (2019-07-19)
        Fluorinated lanthanum molybdates have been prepared at 1500 and 1200 ºC for 1 h and cooled down at 5 ºC min-1. The combination of anionic (F-) and cationic (Nb5+) doping stabilizes the cubic polymorph without needing a ...
      • Effect of Zn addition on the structure and electrochemical properties of codoped BaCe0.6Zr0.2Ln0.2O3-δ (Ln=Y, Gd, Yb) proton conductors 

        Zamudio-García, Javier; Porras-Vázquez, José Manuel; Dos Santos-Gómez, Lucía; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (Elsevier, 2018-05-02)
        In this work, BaCe0.6Zr0.2Y0.2-xYbxO3-δ and BaCe0.6Zr0.2Gd0.2-xYbxO3-δ (x=0–0.20), proton conducting materials are prepared by the freeze-drying precursor method. The sintering conditions were optimized by adding ...
      • Exploiting the Multifunctionality of M2+/Imidazole−Etidronates for Proton Conductivity (Zn2+) and Electrocatalysis (Co2+, Ni2+) toward the HER, OER, and ORR 

        Vílchez-Cózar, Álvaro; Armakola, Eirini; Gjika, Maria; Visa, Aurelia; Bazaga-García, Montse; Olivera-Pastor, PascualAutoridad Universidad de Málaga; Choquesillo-Lazarte, Duane; Marrero-López, DavidAutoridad Universidad de Málaga; Cabeza-Diaz, AurelioAutoridad Universidad de Málaga; P. Colodrero, Rosario M.; Demadis, Konstantinos D.[et al.] (American Chemical Society, 2022-02-22)
        This work deals with the synthesis and characterization of one-dimensional (1D) imidazole-containing etidronates, [M2(ETID)(Im)3]·nH2O (M = Co2+ and Ni2+; n = 0, 1, 3) and Zn2(ETID)2(H2O)2](Im)2, as well as the corresponding ...
      • High efficiency cathodes for SOFCs prepared by spray-pyrolysis 

        Dos Santos-Gómez, Lucía; Ramirez-Losilla, EnriqueAutoridad Universidad de Málaga; Marrero-López, DavidAutoridad Universidad de Málaga (2015-07-10)
        In recent years, lowering the operating temper-ature of the Solid Oxide Fuel Cells (SOFCs) to the intermediate temperature range (500-700 ºC) has become the main challenge for this technology. The electrolyte resistance ...
      • Highly efficient La0.8Sr0.2MnO3-δ - Ce0.9Gd0.1O1.95 nanocomposite cathodes for solid oxide fuel cells 

        Dos Santos-Gómez, Lucía; Zamudio-García, Javier; Porras-Vázquez, José Manuel; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (Elsevier, 2017-12-15)
        La0.8Sr0.2MnO3-δ-Ce0.9Gd0.1O1.95 (LSM-CGO) nanostructured cathodes are successfully prepared in a single process by a chemical spray-pyrolysis deposition method. The cathode is composed of nanometric particles of approximately ...
      • Highly efficient LaCr0.75M0.25O3+δ (M= Ti, Mn, Fe, Co and Cu) nanostructured electrodes for Solid Oxide Fuel Cells 

        Zamudio-García, Javier; Porras-Vazquez, Jose ManuelAutoridad Universidad de Málaga; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (2019-09-30)
        Nanostructured composites electrodes based on lanthanum chromites has been prepared using Spray-pyrolysis precursor method achieving better Rp as SOFC electrodes. The performance in real SOFC is still in progress.
      • Influence of lanthanum doping on the structure and transport properties of CeO2 

        Zamudio-García, Javier; Porras-Vázquez, José Manuel; Dos Santos-Gómez, Lucía; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (2019-06-10)
        LaxCe1-xO2-x/2 materials are oxide and/or proton conductors depending on the La-content and they are of interest for numerous electrochemical applications at high temperatures, including membranes for hydrogen separation ...
      • Influence of Nb-doping on the structural and electrical properties of lanthanum molybdates, La5.4MoO11.1 

        López-Vergara, Adrián; Porras-Vázquez, José Manuel; Vollestad, Einar; Canales-Vázquez, J.; Ramirez-Losilla, EnriqueAutoridad Universidad de Málaga; Marrero-López, DavidAutoridad Universidad de Málaga[et al.] (2018-06-28)
        Nowadays, hydrogen is receiving a great deal of attention as an energy carrier. Commonly, it is obtained by hydrocarbons reforming, such as natural gas, coal and biomass. However, the resulting hydrogen needs to be purified ...
      • La0.8Sr0.2MnO3-d-based nanocomposite functional layers for improved cathode efficiency in SOFCs 

        Caizán Juanarena, Leire; Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramirez-Losilla, EnriqueAutoridad Universidad de Málaga; Marrero-López, DavidAutoridad Universidad de Málaga (2022)
        Solid Oxide Fuel Cells (SOFC) are efficient electrochemical devices that are able to convert chemical energy in the form of fuels into electricity, but at low operating temperatures they are mainly limited by the high ...
      • LaCr0.75Mn0.25O3+δ –CGO nanocomposite electrodes for highly efficient Solid Oxide Fuel Cells 

        Zamudio-García, Javier; Porras-Vazquez, Jose ManuelAutoridad Universidad de Málaga; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (2021-07-24)
        One of the most recent strategies to enhance the electrode performance is the preparation of nanocomposite materials, leading to an increase of the triple-phase-boundary (TPB) length. In this way, ...
      • LaCrO3–CeO2-Based Nanocomposite Electrodes for Efficient Symmetrical Solid Oxide Fuel Cells 

        Zamudio-García, Javier; Porras-Vazquez, Jose ManuelAutoridad Universidad de Málaga; Ramirez-Losilla, EnriqueAutoridad Universidad de Málaga; Marrero-López, DavidAutoridad Universidad de Málaga (2022-04-05)
        La0.98Cr0.75Mn0.25O3−δ–Ce0.9Gd0.1O1.95 (LCM-CGO) nanocomposite layers with different LCM contents, between 40 and 60 wt %, are prepared in a single step by a spray-pyrolysis deposition method and evaluated as both air and ...
      • Lanthanide molybdates, Ln5.4MoO11.1 (Ln = Nd, Sm and Gd), for hydrogen separation membranes 

        Porras-Vázquez, José Manuel; Zamudio-García, Javier; Marrero-López, DavidAutoridad Universidad de Málaga; Losilla, Enrique R. (Advanced Nano Materials, ANM2022, 2022-07-27)
        Nowadays, lanthanide molybdates (Ln6-xMoO12-, Ln = La-Lu) are attracting attention as candidates for hydrogen separation membranes due to its high ambipolar proton-electron conductivity. In these compounds, a very high ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA