A novel membrane electrode assembly for improving the efficiency of the unitized regenerative fuel cell

被引：37

作者：

Chen, Guobao ^{[1
,2
]}

Zhang, Huamin ^{[1
]}

Cheng, Jinbing ^{[1
,2
]}

Ma, Yuanwei ^{[1
,2
]}

Zhong, Hexiang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Key Mat Lab PEMFCs, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 09期

基金：

国家高技术研究发展计划(863计划);

关键词：

unitized regenerative fuel cells; membrane electrode assembly; Nafion-pyrolyzed method; thin-film electrocatalyst layer; water electrolysis;

D O I：

10.1016/j.elecom.2008.07.002

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel membrane electrode assembly (MEA) for unitized regenerative fuel cell (URFC) has been developed. The MEA was fabricated to improve the efficiency of the URFC by a Nafion-pyrolyzed method. The polarization curves for fuel cell and water electrolysis modes of URFC operation both were investigated. The MEA improved water management and minimized mass transport limitations. The URFC using the novel MEA exhibited a high water electrolysis performance and a much higher fuel cell performance than that of the URFC using the conventional MEA. The efficiency of fuel cell and round-trip enhanced 13.5% and 10.8% at 700 mA/cm(2) with the novel MEA respectively. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1373 / 1376

页数：4