Preparation and evaluation of sulfonated-fluorinated poly (arylene ether)s membranes for a proton exchange membrane fuel cell (PEMFC)

被引：70

作者：

Lee, HC ^{[1
]}

Hong, HS ^{[1
]}

Kim, YM ^{[1
]}

Choi, SH ^{[1
]}

Hong, MZ ^{[1
]}

Lee, HS ^{[1
]}

Kim, K ^{[1
]}

机构：

[1] Korea Univ, Div Chem & Mol Engn, Seoul 136701, South Korea

来源：

ELECTROCHIMICA ACTA | 2004年 / 49卷 / 14期

关键词：

PEMFC; PEM; fluorinated; sulfonation; poly(arylene ether);

D O I：

10.1016/j.electacta.2004.01.012

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

New proton exchange membranes were prepared and evaluated as polymer electrolytes for a proton exchange membrane fuel cell (PEMFC). Two types of fluorinated poly(arylene ether)s (FPAEs) were synthesized by nucleophilic aromatic substitution of decafluorobiphenyl (DFBP) with 4,4'-(hexafluoroisopropylidene)diphenol (HFDP) and bisphenol-A (BPA). The FPAEs so prepared were converted into proton exchange polymers by sulfonation with fuming sulfuric acid (30% SO3). The FPAEs and sulfonated-fluorinated poly(arylene ether)s (S-FPAEs) with various sulfonation levels were characterized using H-1 NMR, thermogravimetric analysis (TGA) and back titration, and then successfully evaluated as proton exchange membranes (PEM) with unit cell operation. power output measurements of S-DFBP-HFDP carried out at a cell temperature of 80degreesC. They exhibited a maximum power density of 425.5 mW/cm(2) at 1150 mA/cm(2). (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：2315 / 2323

页数：9

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