Direct-alcohol SOFCs: Current-voltage characteristics and fuel gas compositions

被引:69
作者
Sasaki, K [1 ]
Watanabe, K [1 ]
Teraoka, Y [1 ]
机构
[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan
关键词
D O I
10.1149/1.1756884
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Power generation characteristics of solid oxide fuel cells (SOFCs) for alcohol-based fuels are measured and compared with those for simulated reformed gas in equilibrium compositions. We demonstrate direct-alcohol SOFCs for methanol, ethanol, propanol, and butanol. Current-voltage characteristics for the methanol-based fuel are comparable to those for the simulated reformed gas at 1000degreesC because of fast kinetics for thermal decomposition of methanol with H2O. With increasing carbon number of alcohols and/or with decreasing operational temperature of SOFCs, a decrease in cell voltage is observed associated with slower decomposition and/or reforming kinetics of alcohols. (C) 2004 The Electrochemical Society.
引用
收藏
页码:A965 / A970
页数:6
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