Listar por autor "Zamudio-García, Javier"
Mostrando ítems 1-18 de 18
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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-Vazquez, Jose 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, ... -
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-Vazquez, Jose 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 ... -
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-Vazquez, Jose 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-Vazquez, Jose 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. -
Influence of lanthanum doping on the structure and transport properties of CeO2
Zamudio-García, Javier; Porras-Vazquez, Jose 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-Vazquez, Jose Manuel; Ramirez-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-Vazquez, Jose 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-Vazquez, Jose Manuel; Ramirez-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-Vazquez, Jose 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 ... -
Modification of the Microstructure and Transport Properties of La2CuO4−δ Electrodes via Halogenation Routes
Dos Santos-Gómez, Lucía; Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Ramirez-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. ... -
Nanostructured composites as active layer to boost cathode performance in Solid Oxide Fuel Cells
Caizán Juanarena, Leire; Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Ramirez-Losilla, Enrique; Marrero-López, David (2022-04)
Since the efficiency of Solid Oxide Fuel Cells (SOFCs) is largely limited by the high polarization resistance of the cathode, several strategies have been proposed to enhance the electrochemical activity of such electrodes. ... -
Relationship between the Structure and Transport Properties in the Ce1−xLaxO2−x/2 System
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Canales-Vázquez, J.; Cabeza-Diaz, Aurelio; Losilla, Enrique R.; Marrero-López, David[et al.] (American Chemical Society, 2019-06-25)
La-doped CeO2 materials have been widely investigated for potential applications in different high-temperature electrochemical devices, such as fuel cells and ceramic membranes for hydrogen production. However, the crystal ... -
Structural analysis and sintering aids effects in La2Ce2O7 proton conductors
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (2018-11-15)
Global warming is an important problem that has to be solved without delay. The development of environmental-friendly energy technology is needed to deal with this issue. Solid Oxide Fuel Cells (SOFC) technology has been ... -
Symmetrical solid oxide fuel cells based on titanate nanocomposite electrodes
Zamudio-García, Javier; Dos Santos-Gómez, Lucía; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (Elsevier, 2022-11-26)
Nanocomposite electrodes of (Sr0.7Pr0.3)0.95TiO3±δ−Ce0.9Gd0.1O1.95 are directly prepared by spray-pyrolysis deposition on Zr0.82Y0.16O1.92 electrolytes and their properties are compared with those obtained by the traditional ... -
Tunable electrode architectures for La0.8Sr0.2Fe1-xTixO3-δ based Symmetrical Solid Oxide Fuel Cells.
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (2021-07-18)
The efficiency of SOCF electrodes can be improved by optimizing the microstructure from alternative preparation methods, such as infiltration and nanostructured electrodes deposited at low temperature. ... -
Unraveling the Influence of the Electrolyte on the Polarization Resistance of Nanostructured La0.6Sr0.4Co0.2Fe0.8O3-δ Cathodes
Zamudio-García, Javier; Caizán Juanarena, Leire; Porras-Vazquez, Jose Manuel; Ramirez-Losilla, Enrique; Marrero-López, David (IOAP-MPDI, 2022-11-08)
Large variations in the polarization resistance of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathodes are reported in the literature, which are usually related to different preparation methods, sintering temperatures, and resulting ... -
Vertically Aligned Nanostructures for SOFC applications
Zamudio-García, Javier; Chiabrera, Francesco; Ramirez-Losilla, Enrique; Pryds, Nini; Esposito, Vincenzo; Marrero-López, David[et al.] (2022)
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. On this way, heteroepitaxial nanocomposite ...