A high conductivity Cs2.5H0.5PMo12O40/polybenzimidazole (PBI)/H3PO4 composite membrane for proton-exchange membrane fuel cells OPE-rating at high temperature

被引：84

作者：

Li, Ming-Qiang ^{[1
]}

Shao, Zhi-Gang ^{[2
]}

Scott, Keith ^{[1
]}

机构：

[1] Univ Newcastle, Sch Chem Engn & Adv Mat, Newcastle NE1 7RU, Tyne & Wear, England

[2] Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2008年 / 183卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

polyoxometalate; proton-exchange membrane; PEM; high-temperature; fuel cell; PBI;

D O I：

10.1016/j.jpowsour.2008.04.093

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 high conductivity composite proton-exchange membrane Cs2.5H0.5PMo12O40 (CSPOM)/polybenzimidazole (PBI) for use in hydrogen proton-exchange fuel cells has been prepared. The CsPOM composite membrane is insoluble in water. The composite membrane doped with H3PO4 showed high-proton conductivity (>0.15 S cm(-1)) and good thermal stability. P-31 NMR analysis has suggested the formation of a chemical bond between the CsPOM and PBI in the composite membrane. The performance of the membrane in a high-temperature proton-exchange membrane fuel cell (PEMFC) fueled with hydrogen was better than that with a phosphoric acid-doped PBI membrane under the same conditions and at temperatures greater than 150 C. The CsPOM/PBI composite would appear to be a promising material for high-temperature PEMFC applications. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

引用

页码：69 / 75

页数：7

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