Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC
文献类型：期刊论文
| 作者 | Wang, Hongwei; Hou, Junbo; Yu, Hongmei; Sun, Shucheng |
| 刊名 | journal of power sources
 |
| 出版日期 | 2007-02-25 |
| 卷号 | 165期号:1页码:287-292 |
| 关键词 | degradation reverse voltage MEA hydrogen pump PEMFC |
| 产权排序 | 1;1 |
| 通讯作者 | 王洪卫 |
| 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. |
| 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 |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000245093800035 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98849]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 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 |
| 推荐引用方式 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.(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. |
入库方式： OAI收割
来源：大连化学物理研究所
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