期刊
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 16, 期 6, 页码 2071-2077出版社
SPRINGER
DOI: 10.1007/s10008-011-1615-1
关键词
Solid oxide fuel cell; Cathode-supported; Bimetallic anode; Methane
资金
- JSPS [11014675]
- China Scholarship Council
A Ni0.5Cu0.5-CGO (Ce0.8Gd0.2O1.9) anode in a LSM ((La0.75Sr0.25)(0.95)MnO3-delta )-CGO cathode-supported SOFC is tested in humidified H-2 (3% H2O) and in low concentration of dry methane, respectively. After co-sintering at 1,300 A degrees C, it was found that the A-site-deficient LSM effectively hindered the formation of La2Zr2O7 or SrZrO3. The OCVs of the cell are as high as 1.132, 1.14, and 1.147 V in humidified H-2 and 1.314, 1.269, and 1.2 V in 14.8% of dry methane at 850, 800 and 750 A degrees C, respectively, indicating that the ScSZ electrolyte film prepared by the present method is dense enough. The corresponding peak power densities are 0.396, 0.287, and 0.19 W cm(-2) in humidified H-2 and 0.249, 0.164, and 0.096 W cm(-2) in 14.8% of dry methane at 850, 800, and 750 A degrees C, respectively. The prepared cathode-supported SOFC with NiCu-CGO bimetallic anode shows long-term stability when dry methane is used as fuel.
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