Composite Nafion/polyvinyl alcohol membranes for the direct methanol fuel cell

被引：161

作者：

Shao, ZG ^{[1
]}

Wang, X ^{[1
]}

Hsing, IM ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2002年 / 210卷 / 01期

关键词：

fuel cell; composite membranes; barrier membrane; electrochemistry; pervaporation;

D O I：

10.1016/S0376-7388(02)00386-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The methanol crossover in the direct methanol fuel cell (DMFC) can be reduced by casting a thin film containing the mixture of polyvinyl alcohol (PVA) and Nafion on a commercial perfluorosulfonic membrane (Nafion, Dupont). In addition to the cell polarization testing, a design factor defined as the reciprocal of the multiplication of the methanol permeation current density and membrane area resistance, was used to evaluate the membrane's performance. Our study has shown that at the weight ratio of 1: 1 in PVA and Nation, the thin film-coated Nafion membrane exhibits low methanol crossover and the membrane conductance can be improved by the sulfonation treatment. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：147 / 153

页数：7

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