High performance direct methanol polymer electrolyte fuel cells

被引：498

作者：

Ren, XM

Wilson, MS

Gottesfeld, S

机构：

[1] Electron. Electrochemical Mat. D., Los Alamos National Laboratory, Los Alamos

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1996年 / 143卷 / 01期

关键词：

D O I：

10.1149/1.1836375

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Direct methanol fuel cells (DMFCs) using Pt-Ru electrocatalysts and perfluorosulfonic acid membranes provide high performances if operated above 100 degrees C with optimized catalyst layers. A decal transfer method is used to apply thin-film catalyst/ionomer composite layers to Nafion(R) membranes. A Nafion 112 membrane/electrode assembly operating on 5 atm oxygen at 130 degrees C yields a current of 670 mA/cm(2) at 0.5 V cell voltage. Peak power density is 400 mW/cm(2). The same cell operating on 3 atm air at 110 degrees C yields 370 mA/cm(2) at 0.5 V and provides a maximum power density of 250 mW/cm(2).

引用

页码：L12 / L15

页数：4

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