期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 38, 期 30, 页码 13427-13433出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.07.042
关键词
Fuel cell; Anion-exchange membrane fuel cell; Air-breathing direct ethanol fuel cell; Anion-exchange membrane; Overshoot/undershoot behavior; Water flooding
资金
- National Natural Science Foundation of China [U1261112]
- Program for New Century Excellent Talents in University [NCET-12-0446]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120201130006, 20110201110038]
- Fundamental Research Funds for the Central Universities
An air-breathing direct ethanol fuel cell (DEFC) with an anion-exchange membrane (AEM) and Pt-free electrodes is designed and investigated. Particular attention is paid to studying the performance characteristics of the air-breathing AEM DEFC. Experimental results reveal that this air-breathing AEM DEFC yields a peak power density as high as 38 mW cm(-2) at room temperature, which is comparable to the conventional Pt-based proton exchange membrane direct methanol fuel cells (PEM DMFCs). The overshoot/undershoot behaviors of both the cell voltage and cell temperature are avoided in the air-breathing AEM DEFC due to the use of ethanol-tolerant cathode catalyst. It is also found that the cathode water flooding behavior occurs in this air-breathing AEM DEFC, thus lowering the cell performance. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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