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Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC
Wang, Hongwei; Hou, Junbo; Yu, Hongmei; Sun, Shucheng; Wang HW(王洪卫); Wang HW(王洪卫)
关键词Degradation Reverse Voltage Mea Hydrogen Pump Pemfc
刊名JOURNAL OF POWER SOURCES
2007-02-25
DOI10.1016/j.jpowsour.2006.11.070
165期:1页:287-292
收录类别SCI
文章类型Article
部门归属3
项目归属301
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Energy & Fuels
研究领域[WOS]Electrochemistry ; Energy & Fuels
关键词[WOS]FUEL-CELLS
英文摘要Effects of reverse voltage and frozen fuel cell startup on the membrane electrode assembly (MEA) were investigated for a proton exchange membrane fuel cell (PEMFC). A single cell was started from a subzero temperature by applying reverse voltage. The voltages applied to the cell were 0.8 and 1.2 V. The fuel cell performance was measured with a polarization curve and by cyclic voltammetry (CV), electrochemical impedance spectra (EIS), linear scan voltammetry (LSV) after each experiment. From the results, it was concluded that the catalyst activity, electrochemical active surface area (ECA) and the membrane were not damaged by the reverse voltage if the voltage was below 0.85 V. In contrast, a reverse voltage improved cell performance slightly. If the reverse voltage was larger than 0.85 V, the cell performance degraded. Another single cell with an active area of 128 cm(2) was started up at -15 degrees C by applying reverse voltage. The cell performance and MEA physical characteristic were tested before and after the freeze startup. From the results, the cell performance decayed MEA delamination was observed and the pore size distribution of the MEA changed. (c) 2007 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000245093800035
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被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/98849
专题中国科学院大连化学物理研究所
通讯作者Wang HW(王洪卫); Wang HW(王洪卫)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Wang, Hongwei,Hou, Junbo,Yu, Hongmei,et al. Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC[J]. JOURNAL OF POWER SOURCES,2007,165(1):287-292.
APA Wang, Hongwei,Hou, Junbo,Yu, Hongmei,Sun, Shucheng,王洪卫,&王洪卫.(2007).Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC.JOURNAL OF POWER SOURCES,165(1),287-292.
MLA Wang, Hongwei,et al."Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC".JOURNAL OF POWER SOURCES 165.1(2007):287-292.
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