Journal article
Synthesis and characterization of cobaltite nanotubes for solid-oxide fuel cell cathodes
La1-xSrxCo1-yFeyO3-δ 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-δ (LSCF) nanotubes prepared by a porous polycarbonate membrane approach, obtaining different microstructures depending on sintering conditions.
The structure and morphology of the nanotubes and deposited films were characterized by X-ray diffraction, 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.
Language: | English |
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Publisher: | IOP Publishing |
Year: | 2009 |
Pages: | 012042 (5pp) |
ISSN: | 17426596 and 17426588 |
Types: | Journal article |
DOI: | 10.1088/1742-6596/167/1/012042 |