Preparation of composite membrane between a uniform porous silica matrix and injected proton conductive gel polymer

被引:44
作者
Kanamura, K
Mitsui, T
Munakata, H
机构
[1] Tokyo Metropolitan Univ, Grad Sch Engn, Dept Appl Chem, Tokyo 1920397, Japan
[2] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan
关键词
D O I
10.1021/cm047979y
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new proton-conducting membrane was prepared consisting of uniformly macroporous silica and a proton-conducting gel polymer electrolyte. Three-dimensionally uniformly ordered macroporous silica was synthesized by use of a colloidal template method with monodisperse polystyrene beads. A macroporous silica membrane with adequate mechanical strength and porosity was successfully obtained. A gel polymer, 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), was injected into all of the pores to prepare a proton-conducting membrane that is a composite of macroporous silica and the gel polymer. The prepared membrane exhibited high proton conductivity and low methanol permeation. A H-2-O-2 fuel cell was constructed in order to test the composite membrane. The electrochemical performance obtained for the fuel cell with the composite membrane was similar to that for a fuel cell with a Nafion 117 membrane. From this result, it can be concluded that the composite membrane consisting of ceramic and polymer can be applied to fuel cells working at low temperature.
引用
收藏
页码:4845 / 4851
页数:7
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