Stretched recast Nafion for direct methanol fuel cells

被引：44

作者：

Lin, J. ^{[1
]}

Wycisk, R.

Pintauro, P. N.

Kellner, M.

机构：

[1] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA

[2] Hawken Sch, Gate Mills, OH 44040 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 01期

关键词：

D O I：

10.1149/1.2382264

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Uniaxially stretched recast Nafion membranes were fabricated with improved fuel cell performance, as compared to Nafion 117 and nonstretched recast Nafion. The methanol permeability decreased and proton conductivity was unchanged with increasing draw ratio. At 60 degrees C and 1.0 M methanol, the power density at 0.4 V with stretched recast Nafion (76 mW/cm(2)) was 38% higher than that with Nafion 117 and 50% higher at 0.5 M methanol (60 vs 40 mW/cm(2)). At 80 degrees C, a power density of 162 mW/cm(2) at 0.4 V and a maximum power density of 209 mW/cm(2) were obtained (vs 70 and 123 mW/cm(2) with Nafion 117). (c) 2006 The Electrochemical Society.

引用

页码：B19 / B22

页数：4

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