Homopolymer-like sulfonated phenyl- and diphenyl-poly(arylene ether ketone)s for fuel cell applications

JOURNAL OF POWER SOURCES

卷:185

Article

Liu, Baijun^1,3  Kim, Yu Seung²  Hu, Wei³  Robertson, Gilles P.¹  Pivovar, Bryan S.²  Guiver, Michael D.¹ 

[1] Natl Res Council Canada, Inst Chem Proc & Environm Technol, Ottawa, ON K1A 0R6, Canada

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Jilin Univ, Alan G MacDiarmid Inst, Changchun 130023, Peoples R China

关键词: Proton exchange membrane;    Fuel cell;    Single cell performance;   

DOI  :  10.1016/j.jpowsour.2008.08.088

来源: Elsevier

【 摘 要 】

Two series of homopolymer-like sulfonated aromatic poly(ether ketone)s (SPEKs) were readily prepared and post-sulfonated using mild conditions. The homopolymer-like SPEKs exhibited advantages in synthesis and physical properties over typical post-sulfonated random copolymers, such as rapid and mild sulfonation conditions, high molecular weights, site specificity and control over IEC, as well as an excellent combination of dimensional swelling stability, low methanol permeability and high proton conductivity. These beneficial membrane properties are reflected in the attractive direct methanol fuel cell (DMFC) and polymer electrolyte membrane fuel cell (PEMFC) performance of these homopolymer-like SPEKs as compared with typical random copolymer SPEKs. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

【 授权许可】

Free