Self-assembly modification of perfluorosulfonic acid membranes for the application to direct methanol fuel cells

被引：12

作者：

Moon, Go Young ^{[2
]}

Rhim, Ji Won ^{[1
]}

机构：

[1] Hannam Univ, Dept Chem Engn, Taejon 305811, South Korea

[2] LG Chem Ltd, CRD, Taejon 305380, South Korea

来源：

MACROMOLECULAR RESEARCH | 2008年 / 16卷 / 06期

关键词：

direct methanol fuel cell; nafion; methanol crossover; self assembly; surface modification;

D O I：

10.1007/BF03218554

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The mitigation or elimination of methanol crossover for perfluorosulfonic acid fuel cell membranes has been investigated extensively for direct methanol fuel cell applications with the aim of increasing the electrochemical performance and enhancing the utilization rate of methanol. Self-assembly modifications by applying an oppositely charged polyelectrolyte to Nafion membranes were attempted in order to block or reduce methanol crossover while maintaining the other advantageous properties of Nafion membranes. It was reported that anionic polyallylarmine hydrochloride (PAH) was the most efficient polyelectrolyte in reducing methanol crossover, and considerable cell performance was obtained even at a methanol feed concentration of 10 M.

引用

页码：524 / 531

页数：8

共 24 条

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