Electrochemical reactions in a DMFC under open-circuit conditions

被引:66
作者
Ye, Q [1 ]
Zhao, TS [1 ]
Yang, H [1 ]
Prabhuram, J [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
关键词
D O I
10.1149/1.1836111
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Gas evolution, principally consisting of carbon dioxide and hydrogen, was observed in the anode flow field of a direct methanol fuel cell (DMFC) running under open-circuit conditions and at low oxygen flow rates. This finding is contrary to conventional wisdom that electrochemical reactions cease as an external load is removed. The mechanism leading to this peculiar phenomenon is explained theoretically and confirmed experimentally. (C) 2004 The Electrochemical Society.
引用
收藏
页码:A52 / A54
页数:3
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