Performance of cathode-supported SOFC with Ni0.5Cu0.5-CGO anode operated in humidified hydrogen and in low-concentration dry methane

被引：9
作者：
Chen, Gang [1 ]
Guan, Guoqing [2 ]
Kasai, Yutaka [3 ]
You, Hong-Xin [4 ]
Abudula, Abuliti [1 ,2 ]
机构：
[1] Hirosaki Univ, Grad Sch Sci & Technol, Hirosaki, Aomori 0368560, Japan
[2] Hirosaki Univ, NJRISE, Aomori 0300813, Japan
[3] Aomori Prefectural Ind Technol Res Ctr, Ind Res Inst, Aomori 0300113, Japan
[4] Dalian Univ Technol, Chem Engn Coll, Dalian 116024, Peoples R China
来源：
JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2012年 / 16卷 / 06期
关键词：
Solid oxide fuel cell; Cathode-supported; Bimetallic anode; Methane; OXIDE FUEL-CELLS; DIRECT OXIDATION; DEGRADATION; HYDROCARBONS; ELECTROLYTE; FABRICATION; CONVERSION; LAYER; FILM; SDC;
D O I：
10.1007/s10008-011-1615-1
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
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.
引用
收藏
页码：2071 / 2077
页数：7
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