Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers
文献类型：期刊论文
| 作者 | Miao, Zhili1,2; Yu, Hongmei1; Song, Wei1,2; Hao, Lixing1,2; Shao, Zhigang1; Shen, Qiang1,2; Hou, Junbo1,2; Yi, Baolian1 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 35期号:11页码:5552-5557 |
| 关键词 | Proton exchange membrane fuel cell Cold start Catalyst layer Nanosized SiO(2) |
| 产权排序 | 1;1 |
| 通讯作者 | 俞红梅 |
| 英文摘要 | in this study, a novel strategy is reported to improve the cold start performance of proton exchange membrane (pem) fuel cells at subzero temperatures. hydrophilic nano-oxide such as sio(2) is added into the catalyst layer (cl) of the cathode to increase its water storing capacity. to investigate the effect of nanosized sio(2) addition, the catalyst coated membranes (ccms) with 5 wt.% and without nanosized sio(2) are fabricated. although at normal operation conditions the cell performance with nanosized sio(2) was not so good as that without sio(2), cold start experiments at -8 degrees c showed that the former could start and run even at 100 ma cm(-2) for about 25 min and latter failed very shortly. even at -10 degrees c, the addition of sio(2) dramatically increased the running time before the cell voltage dropped to zero. these results further experimentally proved the cold start process was strongly related with the cathode water storage capacity. also, the performance degradation during 8 cold start cycles was evaluated through polarization curves, cyclic voltammetry (cv) and electrochemical impedance spetra (eis). compared with the cell without sio(2) addition, the cell with 5 wt.% sio(2) indicated no obvious degradation on cell performance, electrochemical active surface area and charge transfer resistance after experiencing cold start cycles at -8 degrees c. (c) 2010 professor t. nejat veziroglu. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | temperature operation ; ice formation ; performance ; pefc ; pemfc ; parameters ; stacks ; design ; water |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000278967900043 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/103639]  |
| 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, Lab Fuel Cells, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Miao, Zhili,Yu, Hongmei,Song, Wei,et al. Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers[J]. international journal of hydrogen energy,2010,35(11):5552-5557. |
| APA | Miao, Zhili.,Yu, Hongmei.,Song, Wei.,Hao, Lixing.,Shao, Zhigang.,...&Yi, Baolian.(2010).Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers.international journal of hydrogen energy,35(11),5552-5557. |
| MLA | Miao, Zhili,et al."Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers".international journal of hydrogen energy 35.11(2010):5552-5557. |
入库方式： OAI收割
来源：大连化学物理研究所
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