Catalytic Activities and Electrochemical Properties of Y and Fe Co-Doped SrTiO3-Based Composite Anodes for Solid Oxide Fuel Cells (SOFCs)

Autor:	Hae-Jin Hwang, Song Seol Yoon, Mi Jung Ji, Byung Hyun Choi, Young Han Kim
Rok vydání:	2011
Předmět:	chemistry.chemical_compound Materials science Chemical engineering chemistry Composite number Oxide Fuel cells Electrochemistry Co doped Anode Catalysis
Zdroj:	ECS Meeting Abstracts. :787-787
ISSN:	2151-2043
DOI:	10.1149/ma2011-01/12/787
Popis:	In this study, Fine Y and Fe co-doped SrTiO3 powers were synthesized via solid state reaction and pechini method. Perovskite-based anodes were proposed to enhance the anode performance. Doping with Y for Sr allows the Y0.08Sr0.92FexTi1-xO3-δ perovskite to be stable at 800°C in a reducing atmosphere. Sintering the oxde anode at 1200°C is found to be optimum to obtain not only good interfacial adhesion, but also a fine grain structure. The Y0.08Sr0.92Fe0.25Ti0.75O3-δ anode, which is sintered at 1200°C, showed the lowest polarization resistance. Electrochemical properties and catalytic activity for CH4 oxidation of the composite anode were investigated by gas chromatography and ac-impedance spectroscopy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ae4bbaa82f2628a6aeb2d9f2b0ee288 https://doi.org/10.1149/ma2011-01/12/787 Zobrazit plný text záznamu