Potential dependence of sulfur dioxide poisoning and oxidation at the cathode of proton exchange membrane fuel cells
文献类型：期刊论文
| 作者 | Fu, Jie1,2; Hou, Ming1; Du, Chao1,2; Shao, Zhigang1; Yi, Baolian1 |
| 刊名 | journal of power sources
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 187期号:1页码:32-38 |
| 关键词 | Proton exchange membrane fuel cell Sulfur dioxide Potential dependence Poisoning Oxidation |
| 英文摘要 | cyclic voltammetry (cv) and electrochemical impedance spectroscopy (eis) were employed to investigate changes in the cathode after the introduction of so(2). the decay in performance of the proton exchange membrane fuel cell (pemfc) was ascribed to the increasing of the charge transfer resistance (r(ct)) caused by the loss of the electrochemical surface area (eca). the results show that the oxidation and adsorption behaviors of so(2) depended closely on the potential. adsorbed sulfur began to be oxidized over 0.9v and could be oxidized completely with cv maximum potentials lip to 1.05 v or higher. at about 0.65 v, the adsorbed so(2) was probably in a molecular state, which could be reduced in the range of 0.65-0.05 v. some so(2) molecules occupied initially two pt sites through s and o. one of the two sites could be released after the reduction. the increasing of eca due to reduction could lessen the impact of so(2) on the pemfc performance at voltages below 0.65 v. (c) 2008 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] | platinum-electrode ; pemfc performance ; so2 ; adsorption ; impact |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000263306300005 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141407]  |
| 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 Syst & Engn Res Grp, 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 | Fu, Jie,Hou, Ming,Du, Chao,et al. Potential dependence of sulfur dioxide poisoning and oxidation at the cathode of proton exchange membrane fuel cells[J]. journal of power sources,2009,187(1):32-38. |
| APA | Fu, Jie,Hou, Ming,Du, Chao,Shao, Zhigang,&Yi, Baolian.(2009).Potential dependence of sulfur dioxide poisoning and oxidation at the cathode of proton exchange membrane fuel cells.journal of power sources,187(1),32-38. |
| MLA | Fu, Jie,et al."Potential dependence of sulfur dioxide poisoning and oxidation at the cathode of proton exchange membrane fuel cells".journal of power sources 187.1(2009):32-38. |
入库方式： OAI收割
来源：大连化学物理研究所
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