Modified poly(phthalazinone ether ketone) membranes for direct methanol fuel cell

被引：12
作者：
Zhang, Hongwei [1 ]
Zhou, Zhentao [1 ]
机构：
[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China
来源：
POLYMERS FOR ADVANCED TECHNOLOGIES | 2008年 / 19卷 / 05期
关键词：
modification; poly(phthalazinone); polymer electrolyte membrane; DMFC;
D O I：
10.1002/pat.1028
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Sulfonated poly(phthalazinone ether ketone)s (SPPEK)s were synthesized by the modification of poly(phthalazinone ether ketone) (PPEK) with 98% concentrated sulfuric acid or 98% concentrated sulfuric acid and chlorosulfonic acid mixture at 80-100 degrees C. The presence of sulfonic acid groups in SPPEKs was confirmed by Fourier transform infrared (FTIR) analysis and nuclear magnetic resonance (NMR), and the DSs were determined by Energy Dispersive X-Ray (EDX). A blend membrane of No. 21 SPPEK and phosphotungstic acid (PWA) was prepared. The methanol permeabilities of SPPEK and blend membranes were about 20 times lower than that of Nafion117 at room temperature. The direct methanol fuel cell (DMFC) test of 2 M methanol solution and air breathing showed that the blend membrane had a better performance than that of the Nafion117. Copyright (c) 2007 John Wiley & Sons, Ltd.
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收藏
页码：425 / 431
页数：7
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