Effect of catalytic ink on sub-freezing endurance of PEMFCs
文献类型：期刊论文
| 作者 | Song, Wei1,2; Yu, Hongmei1; Hao, Lixing1,2; Yi, Baolian1; Shao, Zhigang1 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 35期号:20页码:11129-11137 |
| 关键词 | Proton exchange membrane fuel cells Catalyst-coated membrane Sub-freezing endurance Catalytic ink |
| 产权排序 | 1;1 |
| 通讯作者 | 俞红梅 |
| 英文摘要 | effect of catalytic ink on sub-freezing endurance of proton exchange membrane fuel cells (pemfcs) was investigated in this paper. by direct spraying method, a catalyst-coated membrane (ccm) was fabricated with isopropyl alcohol as organic solvent (ccm-a), and ccm-b was fabricated with isopropyl alcohol and butyl acetate. the hydrophobicity of the two ccms was similar proved by contact angle tests, and ccm-b showed larger pore volume demonstrated by mercury intrusion tests. initial cell performance and relevant electrochemical characteristics of the two ccms were measured and compared. ccm-b showed better performance and larger electrochemical active surface area (eca). by analyzing the electrochemical impedance spectra (eis) at low current densities, the ionic resistances of the catalyst layers were calculated. results indicated that adding butyl acetate to the catalytic ink benefited the ionic resistance. then, the fuel cells with the two ccms were subzero stored at -20 degrees c with saturated residual water. after 20 freeze thaw cycles, the ccm prepared with isopropyl alcohol and butyl acetate showed less degradation in terms of polarization curves and eis. and the ionic resistances of the both ccms decreased to a certain extent. (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] | electrolyte fuel-cells ; mass-transport limitations ; cold start ; electrochemical impedance ; cathode ; performance ; membrane ; layer ; temperatures ; model |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000284443200034 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/103625]  |
| 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, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wei,Yu, Hongmei,Hao, Lixing,et al. Effect of catalytic ink on sub-freezing endurance of PEMFCs[J]. international journal of hydrogen energy,2010,35(20):11129-11137. |
| APA | Song, Wei,Yu, Hongmei,Hao, Lixing,Yi, Baolian,&Shao, Zhigang.(2010).Effect of catalytic ink on sub-freezing endurance of PEMFCs.international journal of hydrogen energy,35(20),11129-11137. |
| MLA | Song, Wei,et al."Effect of catalytic ink on sub-freezing endurance of PEMFCs".international journal of hydrogen energy 35.20(2010):11129-11137. |
入库方式： OAI收割
来源：大连化学物理研究所
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