Synthesis and characterization of proton exchange membranes based on sulfonated poly(fluorenyl ether nitrile oxynaphthalate) for direct methanol fuel cells

被引：23

作者：

Seong, Yul-Hwan ^{[1
]}

Won, Jongok ^{[2
]}

Kim, Sang-Kyung ^{[3
]}

Nam, Kidon ^{[3
]}

Kim, Soo-Kil ^{[4
]}

Kim, Dong-Won ^{[1
,5
]}

机构：

[1] Hanyang Univ, Dept Fuel Cells & Hydrogen Technol, Seoul 133791, South Korea

[2] Sejong Univ, Dept Chem, Seoul 143747, South Korea

[3] Korea Inst Energy Res, Fuel Cell Res Ctr, Taejon 305343, South Korea

[4] KIST, Fuel Cell Ctr, Seoul 136791, South Korea

[5] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 14期

基金：

新加坡国家研究基金会;

关键词：

Direct methanol fuel cell; Proton exchange membrane; Proton conductivity; Methanol permeability; Sulfonated aromatic polymer; KETONE); PERFORMANCE; COPOLYMERS; COMPOSITE; ACID;

D O I：

10.1016/j.ijhydene.2011.04.131

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 series of sulfonated poly(fluorenyl ether nitrile oxynaphthalate) (SPFENO) copolymers with different degree of sulfonation (DS) are synthesized via nucleophilic polycondensation reactions with commercially available monomers. Incorporation of the naphthalanesulfonate group into the copolymers and their copolymer structures are confirmed by (1)H NMR spectroscopy. Thermal stability, mechanical properties, water uptake, swelling behavior, proton conductivity and methanol permeability of the SPFENO membranes are investigated with respect to their structures. The electrochemical performance of a direct methanol fuel cell (DMFC) assembled with the SPFENO membrane was evaluated and compared to a DMFC with a Nafion 117 membrane. The DMFC assembled with the SPFENO membrane of proper DS exhibits better electrochemical performance compared to the Nafion 117-based cell. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：8492 / 8498

页数：7

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