Durability of novel sulfonated poly(arylene ether) membrane in PEFC operation

被引：33

作者：

Aoki, Makoto

Chikashige, Yohei

Miyatake, Kenji

Uchida, Hiroyuki

Watanabe, Masahiro

机构：

[1] Univ Yamanashi, Clean Energy Res Ctr, Kofu, Yamanashi 4008510, Japan

[2] Univ Yamanashi, Interdisciplinary Grad Sch Med & Engn, Kofu, Yamanashi 4008510, Japan

[3] Fuji Elect Adv Technol Co Ltd, Ichihara 2908511, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2006年 / 8卷 / 09期

关键词：

PEFC; durability; poly(arylene ether); ionomer; fuel cell test;

D O I：

10.1016/j.elecom.2006.06.028

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel proton conducting polymer electrolyte membrane, poly(arylene ether) ionomer containing sulfofluorenyl groups (SPE-1), was subjected to long term fuel cell operation. High durability of the SPE-1 membrane was confirmed by single cell test at 80 degrees C and at a constant current density of 0.2 A/cm(2). Under 90% RH operation, superior hydrolytic stability of the SPE-1 membrane was demonstrated even after 5000 h with no noticeable degradations with respect to cell performances, ion exchange capacity, thickness, and molecular weight. Under 60% RH operation, some change in the molecular weight was observed after 2350 h presumably due to the oxidative degradation caused by the increased cross-over of reactant gases through the membrane. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1412 / 1416

页数：5

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