Engineering Composite Oxide SOFC Anodes for Efficient Oxidation of Methane
Engineering Composite Oxide SOFC Anodes for Efficient Oxidation of Methane
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DOI：
10.1149/1.2817809
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发表时间：
2008-02
影响因子：
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通讯作者：
Guntae Kim;G. Corre;J. Irvine;J. Vohs;R. Gorte
中科院分区：
文献类型：
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作者：
Guntae Kim;G. Corre;J. Irvine;J. Vohs;R. Gorte
Ceramic anodes for solid oxide fuel cells SOFCs were prepared by aqueous impregnation of nitrate salts to produce composites with 45 wt % La0.8Sr0.2Cr0.5Mn0.5O3 LSCM in a 65% porous yttria-stabilized zirconia YSZ scaffold. Scanning electron micrographs indicate that the LSCM coats the YSZ pores following calcination at 1473 K. Composites produced in this manner exhibit conductivities at 1073 K of approximately 1 S/cm in air and 0.1 S/cm in humidified H2. A SOFC with a composite anode composed of 45 wt % LSCM, 0.5 wt % Pd, and 5 wt % ceria exhibited maximum power densities at 1073 K of 1.1 and 0.71 W cm 2 in humidified 3% H2O H2 and methane, respectively.
