CO2 crossover through a Nafion membrane in a direct methanol fuel cell

被引：50

作者：

Jiang, RZ ^{[1
]}

Chu, DR ^{[1
]}

机构：

[1] USA, Res Lab, Sensors & Elect Devises Directorate, Adelphi, MD 20783 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2002年 / 5卷 / 07期

关键词：

D O I：

10.1149/1.1480136

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The phenomenon of CO2 crossover from the anode to the cathode through a Nafion 117 membrane was confirmed by external addition and electrochemical generation of CO2 in the anode fluid and examination of the amount of CO2 in the cathode exhaust. The CO2 crossover rate for a single direct methanol fuel cell (DMFC) during operation was determined using a methanol-tolerant cathode catalyst to avoid the direct oxidation of methanol at the cathode electrode. The method of measuring CO2 crossover was suggested to be used for the correction of the experimental deviation for the measurement of methanol crossover in a DMFC. (C) 2002 The Electrochemical Society.

引用

页码：A156 / A159

页数：4

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