Listar por autor "Dos-Santos-Gómez, Lucía"
Mostrando ítems 1-20 de 39
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A novel multilaminated composite cathode for solid oxide fuel cells.
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel
; Martín-Jiménez, Francisco de Paula; Ramos-Barrado, José Ramón; Ramírez-Losilla, Enrique; Marrero-López, David[et al.] (Elsevier, 2019-05-28)
A novel electrode architecture consisting in alternating layers of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and Ce0.9Gd0.1O1.95 (CGO) is prepared for the first time by spray-pyrolysis deposition and investigated as cathode material ... -
Ce0.8Gd0.2O2‐δ / La0.6Sr0.4CoO3 Heterostructures prepared by pulsed laser deposition
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (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; Ramírez-Losilla, Enrique; Marrero-López, David (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 ... -
CuO metallic aerogels with a tailored nodular morphology
(RSC (Royal Society of Chemistry), 2023-09-28)This work reports, for the first time, an efficient and fast microwave-based method for the preparation of CuO aerogels. For that, CuCl2, glyoxylic acid and sodium carbonate are employed as reagents. Different experimental ... -
Desarrollo y control microestructural en materiales para pilas de combustible de óxidos sólidos
(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 ... -
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 ... -
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, David (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 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 ... -
Enseñanza-aprendizaje de contenido académico en inglés: análisis de una innovación/intervención/experiencia en un grado no bilingüe
Dos-Santos-Gómez, Lucía; Infantes-Molina, Antonia (2020-10-26)
La estrategia nacional de enseñanza superior dictada por la CRUE y la institucional de la Universidad de Málaga (UMA) afronta el reto de ofrecer una enseñanza de calidad en un idioma distinto a la lengua materna, mejorando ... -
High efficiency cathodes for SOFCs prepared by spray-pyrolysis
Dos-Santos-Gómez, Lucía; Ramírez-Losilla, Enrique; Marrero-López, David (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, 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 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 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 ... -
Investigation of PO4 3- oxyanion-doping on the properties of CaFe0.4Ti0.6O3 d for potential application as symmetrical electrodes for SOFCs
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David; Slater, Peter (Elsevier, 2020)
CaTi0.6-xFe0.4PxO3-d (0 x 0.075) perovskite series are investigated as potential symmetrical electrodes for SOFCs. Pure phase compounds with a cubic perovskite structure (s.g. Pm3m) are obtained for x 0.025, while ... -
LSCF-CGO nanocomposite cathodes deposited in a single step by spraypyrolysis.
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Martín-Jiménez, Francisco de Paula; Ramos-Barrado, José Ramón; Marrero-López, David[et al.] (Elsevier, 2018-01-01)
La0.6Sr0.4Co0.2Fe0.8O3-δ-Ce0.9Gd0.1O1.95 (LSCF-CGO) nanostructured cathodes with different LSCF-content are prepared in a single step by spray-pyrolysis deposition, simplifying notably the fabrication process compared ... -
Microwave-assisted acid treatment for the mineral transformation of chrysotile as an alternative for asbestos waste management
Essih, Salima; Pardo, Laura; Cecilia-Buenestado, Juan Antonio; Dos-Santos-Gómez, Lucía; Pérez-Colodrero, Rosario Mercedes; Pozo, Manuel; Calero, Gustavo; Franco-Duro, Francisco Ignacio[et al.] (Springer, 2024-07-18)
In this work, the efect of microwaveassisted acid treatments on the morphological and crystallochemical characteristics of chrysotile fbers is investigated. A low concentration of nitric acid (0.2 N) is used to remove ... -
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. ... -
Nanocrystalline cathodes for PC-SOFCs
(2015-07-10)Ceramic proton conductors are of great interest for the development of solid oxide fuel cells (PC-SOFC) operating at relatively low temperatures between 400 and 700 ºC. Perovskites based on BaCeO3-δ exhibit the highest ...