RT Journal Article
T1 LSCF-CGO nanocomposite cathodes deposited in a single step by spraypyrolysis.
A1 Dos-Santos-Gómez, Lucía
A1 Porras-Vázquez, José Manuel
A1 Ramírez-Losilla, Enrique
A1 Martín-Jiménez, Francisco de Paula
A1 Ramos-Barrado, José Ramón
A1 Marrero-López, David
K1 Pilas de combustible
K1 Electroquímica
AB La0.6Sr0.4Co0.2Fe0.8O3-δ-Ce0.9Gd0.1O1.95 (LSCF-CGO) nanostructured cathodes with different LSCF-content areprepared in a single step by spray-pyrolysis deposition, simplifying notably the fabrication process compared tothe traditional methods. The phase formation, structure, microstructure and electrochemical properties of thecathodes are investigated as a function of the CGO-content and the temperature by using X-ray diffraction,electron microscopy and impedance spectroscopy. The addition of CGO to LSCF limits the grain growth, givingrise to fine particles of approximately 30 nm of diameter after sintering at 800 °C. A small particle size of 50 nmis retained even after sintering at 1000 °C. However, the polarization resistance, determined by impedancespectroscopy, is not significantly improved with the CGO-addition. The performance of these nanocompositeelectrodes, investigated in NiOeCGO anode-supported cells, shows an improved power density of 0.9 Wcm−2 at650 °C, compared to 0.56 Wcm−2 for a conventional screen-printed cathode.
PB Elsevier
YR 2018
FD 2018-01-01
LK https://hdl.handle.net/10630/28448
UL https://hdl.handle.net/10630/28448
LA eng
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026