Investigation of a novel MEA for direct dimethyl ether fuel cell

被引：15

作者：

Cai, Ke-Di ^{[1
]}

Yin, Ge-Ping ^{[1
]}

Zhang, Han ^{[1
]}

Wang, Zhen-Bo ^{[1
]}

Du, Chun-Yu ^{[1
]}

Gao, Yun-Zhi ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 02期

基金：

中国国家自然科学基金;

关键词：

direct dimethyl ether fuel cell; anode diffusion layer; hydrophilic; hydrophobic; mass transport;

D O I：

10.1016/j.elecom.2007.11.035

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, we presented the novel membrane electrode assembly (MEA) for direct dimethyl ether fuel cell (DDFC). The anode diffusion layer of the MEA consisted of hydrophilic region and hydrophobic region (with a ratio of region areas of 1: 1). The electrochemical impedance spectra analyses revealed that the mass transfer resistance of novel MEA was lower than that of completed hydrophilic or hydrophobic MEA. The performance of novel MEA for DDFC was enhanced due to the promotion the mass transport of DME fuel at 50 degrees C. The constant current operation curves showed that the performance decay ratio of the novel MEA was lower than that of conventional MEAs. It indicated that the novel MEA benefited the long-term operation of DDFC. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：238 / 241

页数：4

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