Reversible performance loss induced by sequential failed cold start of PEM fuel cells
文献类型：期刊论文
| 作者 | Hou, Junbo1,2; Yu, Hongmei1; Yang, Min2; Song, Wei1; Shao, Zhigang1; Yi, Baolian1 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 36期号:19页码:12444-12451 |
| 关键词 | PEM fuel cells Cold start Freeze degradation Catalyst layer Electrochemical impedance |
| ISSN号 | 待补充 |
| 产权排序 | 1,1 |
| 通讯作者 | 侯俊波 ; 俞红梅 ; 邵志刚 |
| 中文摘要 | reversible performance loss induced by sequential failed cold start of pem fuel cells |
| 英文摘要 | this study correlates the post start cell performance and impedance with the cold start process in the subzero environment. the sequential failed cold starts are deliberately conducted as well as the start at small current density. here the failed cold start means the cell voltage drops to or below zero within very short time during the start process. it is found that there are reversible performance losses for the sequential failed cold starts, while not obvious degradation and no recovery happen for the start at small current density. using the thin film and agglomerate model, it is confirmed that this is due to the water blocking effect. comparing the results from different start processes, a model with respect to the shifting of reactive region within the catalyst layer is applied to explain that the reversible performance loss is associated with the amount of the generated water or ice and the water location or distribution during cold start. the relationship of the cold start performance at high current density and the pore volume in the catalyst layer is also discussed. copyright (c) 2011, hydrogen energy publications, llc. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | membrane-electrode assemblies ; oxygen reduction reaction ; catalyst layer ; electrochemical impedance ; physical degradation ; subzero temperatures ; freeze/thaw cycles ; model ; pefc ; media |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000295657300042 |
| 公开日期 | 2012-07-09 |
| 源URL | [http://159.226.238.44/handle/321008/115435]  |
| 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 Cells Lab, Dalian 116023, Peoples R China 2.Univ Leoben, Dept Phys Chem, A-8700 Leoben, Austria |
| 推荐引用方式 GB/T 7714 | Hou, Junbo,Yu, Hongmei,Yang, Min,et al. Reversible performance loss induced by sequential failed cold start of PEM fuel cells[J]. international journal of hydrogen energy,2011,36(19):12444-12451. |
| APA | Hou, Junbo,Yu, Hongmei,Yang, Min,Song, Wei,Shao, Zhigang,&Yi, Baolian.(2011).Reversible performance loss induced by sequential failed cold start of PEM fuel cells.international journal of hydrogen energy,36(19),12444-12451. |
| MLA | Hou, Junbo,et al."Reversible performance loss induced by sequential failed cold start of PEM fuel cells".international journal of hydrogen energy 36.19(2011):12444-12451. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。