INVESTIGADORES
SERQUIS Adriana Cristina
artículos
Título:
Synthesis and characterization of cobaltite nanotubes for solid-oxide fuel cell cathodes
Autor/es:
F. NAPOLITANO; L. BAQUƉ; H. TROIANI; M. GRANADA; A. SERQUIS
Revista:
Journal of Physics: Conference Series
Editorial:
IOP Publishing Ltd
Referencias:
Año: 2009 vol. 167 p. 120421 - 120421
ISSN:
1742-6596
Resumen:
La1-xSrxCo1-yFeyO3-d oxides are good candidates for solid oxide fuel cell (SOFC) cathodes because these materials present high ionic and electronic conductivity, and compatibility with Cerium Gadolinium Oxide (CGO) electrolytes allowing a lower operation temperature. In this work, we report the synthesis of La0.4Sr0.6Co0.8Fe0.2O3-d (LSCF) nanotubes prepared by a porous polycarbonate membrane approach, obtaining di erent microstructures depending on sintering conditions. The structure and morphology of the nanotubes and deposited films were characterized by X-ray di raction, transmission and scanning microscopy. Finally, we obtained nanostructured films of vertically aligned LSCF tubes deposited over the whole surface of CGO pellets with diameter up to 2.5cm in a direct and single step process.