Synthesis and characterization of cobaltite nanotubes for solid-oxide fuel cell cathodes

F. Napolitano, Laura Baqué, H. Troiani, M. Granada, A. Serquis

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

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.
Original languageEnglish
Book seriesJournal of Physics: Conference Series (Online)
Volume167
Issue number1
Pages (from-to)012042
Number of pages5
ISSN1742-6596
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event19th Latin American Symposium on Solid State Physics - Puerto Iguazú, Argentina
Duration: 5 Oct 200810 Oct 2008
Conference number: 19

Conference

Conference19th Latin American Symposium on Solid State Physics
Number19
CountryArgentina
CityPuerto Iguazú
Period05/10/200810/10/2008

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