Listar por autor "Zamudio-García, Javier"
Mostrando ítems 1-20 de 38
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A review on recent advances and trends in symmetrical electrodes for solid oxide cells.
Zamudio-García, Javier; Caizán-Juanarena, Leire; Porras-Vázquez, José Manuel
; Ramírez-Losilla, Enrique; Marrero-López, David (Elsevier, 2021-12-04)
Symmetrical solid oxide cells (SSOCs) with identical air and fuel electrodes have gained significant scientific interest in the last decade because they offer several advantages over conventional cell configurations. ... -
Active layers based on vertically aligned nanostructures for SOFC applications
Zamudio-García, Javier; Chiabrera, Francesco; Losilla, Enrique R.; Marrero-López, David; 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 ... -
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 Manuel; Losilla, Enrique R.; Marrero-López, David (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, ... -
Design and optimization of self-assembled nanocomposite electrodes for SOFCs.
Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Caizán-Juanarena, Leire; Porras-Vázquez, José Manuel; Marrero-López, David (Elsevier, 2024-06-08)
Nanocomposites exhibit improved electrochemical and mechanical properties compared to single-phase mate- rials, making them promising for the development of efficient and durable electrodes in solid oxide fuel cells (SOFCs). ... -
Doping effects on the structure and electrical properties of La2Ce2O7 proton conductors.
Zamudio-García, Javier; Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (Elsevier, 2020-01-01)
Recent studies have reported that the conductivity of La2Ce2O7 proton conductors is improved by aliovalent doping, despite the high concentration of oxygen vacancies in the pristine material. In this study, we provide ... -
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, David (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 ... -
Efficient symmetrical electrodes based on LaCrO3 via microstructural engineering.
Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (Elsevier, 2021-09-30)
Novel nanostructured electrodes, La0.98Cr0.75B0.25O3δ (B = Mn, Fe, Ti and Cu), are prepared by a single spraypyrolysis deposition method directly on the electrolyte and a porous Ce0.9Gd0.1O1.95 (CGO) scaffold. ... -
Enhancing the Electrochemical Performance in Symmetrical Solid Oxide Cells through Nanoengineered Redox-Stable Electrodes with Exsolved Nanoparticles
Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (American Chemical Society, 2023-12-25)
Symmetrical solid oxide cells (SSOCs) have recently gained significant attention for their potential in energy conversion due to their simplified cell configuration, cost-effectiveness, and excellent reversibility. However, ... -
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, David (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-Vázquez, José Manuel; Losilla, Enrique R.; Marrero-López, David (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. -
Highly oriented and fully dense CGO films prepared by spray-pyrolysis and different precursor salts.
Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (Elsevier, 2020-03-19)
CeO2–based thin films are prepared by spray-pyrolysis deposition from different aqueous precursor solutions containing nitrate, chloride or acetate salts. The morphology and orientation growth strongly depends on the precursor ... -
Impact of the lanthanide size on the polymorphism and electrical properties of Ln5.4MoO11.1 (Ln = Nd, Sm and Gd)
Rubio-Vives, Rafael; Porras-Vázquez, José Manuel; Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Infantes-Molina, Antonia; Canales-Vázquez, J.; Marrero-López, David; Ramírez-Losilla, Enrique[et al.] (Elsevier, 2023)
Mixed proton-electronic conductors are of great interest for high temperature electrochemical devices, such as hydrogen separation membranes. In this contribution, ceramics with composition Ln5.4MoO11.1 (Ln = Nd, Sm and ... -
Influence of Bi1.5Y0.5O3 Active Layer on the Performance of Nanostructured La0.8Sr0.2MnO3 Cathode.
Zamudio-García, Javier; Albarrán-Aroca, Nerea; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (MDPI, 2020-09-01)
The efficiency of solid oxide fuel cell cathodes can be improved by microstructural optimization and using active layers, such as doped bismuth oxides. In this work, Bi1.5Y0.5O3 (BYO) films are prepared by spray-pyrolysis ... -
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, David (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 ... -
La0.8Sr0.2MnO3-d-based nanocomposite functional layers for improved cathode efficiency in SOFCs
Caizán-Juanarena, Leire; Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (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-Vázquez, José Manuel; Losilla, Enrique R.; Marrero-López, David (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-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (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, David; 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 ... -
Microstructural tailoring of nanocomposite electrodes for solid oxide fuel cells
(UMA Editorial, 2023)The high demand for electrical energy induced by the rapid population growth has arisen the necessity to develop sustainable and environmentally friendly energy sources. In this context, fuel cells are one of the ... -
Modification of the Microstructure and Transport Properties of La2CuO4−δ Electrodes via Halogenation Routes
Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (IOAP-MPDI, 2022-06-16)
dos Santos-Gómez L, Zamudio-García J, Porras-Vázquez JM, R. Losilla E, Marrero-López D. Modification of the Microstructure and Transport Properties of La2CuO4−δ Electrodes via Halogenation Routes. Processes. 2022; 10(6):1206. ...