An impedance study of an operating direct methanol fuel cell

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题名:	An impedance study of an operating direct methanol fuel cell
作者:	Yang,SH;Chen,CY;Wang,WJ
贡献者:	電機工程學系
关键词:	POLYMER ELECTROLYTE;AC-IMPEDANCE;PERFORMANCE EVALUATION;OXYGEN-REDUCTION;DMFC;CATHODE;MEMBRANE;ANODE;SPECTROSCOPY;OXIDATION
日期:	2010
上传时间:	2012-03-28 10:10:11 (UTC+8)
出版者:	國立中央大學
摘要:	An electrochemical impedance spectroscopy (EIS) technique was developed to characterize a direct methanol fuel cell (DMFC) under various operating conditions. A silver/silver chloride electrode was used as an external reference electrode to probe the anode and cathode during fuel cell operation and the results were compared to the conventional anode or cathode half-cell performance measurement using a hydrogen electrode as both the counter and reference electrode. The external reference was sensitive to the anode and the cathode as current was passed in a working DMFC. The impedance spectra and DMFC polarization Curves were systematically investigated as a function of air and methanol flow rates, methanol concentration, temperature, and Current density. Water flooding in the cathode was also examined. (C) 2009 Elsevier B.V. All rights reserved.
關聯:	JOURNAL OF POWER SOURCES
显示于类别:	[電機工程學系] 期刊論文

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