An electron-beam-grafted ETFE alkaline anion-exchange membrane in metal-cation-free solid-state alkaline fuel cells

被引:270
作者
Varcoe, JR [1 ]
Slade, RCT [1 ]
机构
[1] Univ Surrey, Guildford GU2 7XH, Surrey, England
基金
英国工程与自然科学研究理事会;
关键词
radiation-grafting; alkaline anion-exchange membrane; fuel cell; ETFE; methanol; metal-cation-free alkaline membrane electrode assembly;
D O I
10.1016/j.elecom.2006.03.027
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A novel, physically strong, quaternary-ammonium-functionalised radiation-grafted ETFE alkaline anion-exchange membrane (AAEM) has been developed for application in fuel cells without undesirable addition of M+OH- into the anode fuel stream, thereby facilitating stable performances and long term operational lifetimes. A promising H-2/O-2 fuel cell peak power performance of 130 MW cm(-2) was obtained for an alkaline membrane electrode assembly, while a maximum power density of 8.5 mW cm(-2) was obtained in a metal-cation-free methanol/O-2 fuel cell. Mass transport phenomena in the electrodes and inadequate interface between the membrane and electrodes were identified as the major limiters of power performance; the need for electrode architectures to be optimised for alkaline membrane fuel cells was identified. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:839 / 843
页数:5
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