The influence of hydrogen sultide on proton exchange membrane fuel cell anodes
文献类型：期刊论文
| 作者 | Shi, Weiyu; Yi, Baolian; Hou, Ming; Jing, Fenning; Yu, Hongmei; Ming, Pingwen |
| 刊名 | journal of power sources
 |
| 出版日期 | 2007-01-10 |
| 卷号 | 164期号:1页码:272-277 |
| 关键词 | PEMFC H2S poisoning cyclic voltammetry potential steps |
| 英文摘要 | the effect of hydrogen sulfide on proton exchange membrane fuel cell (pemfc) anodes was studied by cyclic voltammetry (cv), potential steps and electrochemical impedance spectroscopy (eis). the severity of the effect of h2s varies depending on the h2s concentration, current density and the cell temperature. the anode humidification does not impact the poisoning rate much when the anode is exposed to h2s. the adsorption of h,s on the anode is dissociative and this dissociation can produce adsorbed sulfur. the dissociation potential of h2s was studied by potential steps, and the values of the dissociation potential are about 0.4 v at 90 degrees c, 0.5 v at 60 degrees c and 0.6 v at 30 degrees c, respectively. the adsorbed sulfur can be oxidized at a higher potential. during cv scans, two oxidation peaks for the adsorbed sulfur at 1.07 and 1.2 v were observed at 90 degrees c, however a single oxidation peak could be observed at 1.2 v at 60 degrees c and at 1.27 v at 30 degrees c. application of eis to a h2s vertical bar h-2 half-cell shows that the charge transfer resistance increases when the anode is exposed to h2s because of h2s adsorption. (c) 2006 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] | electrode assemblies ; impedance ; platinum ; sulfide ; adsorption ; pemfc |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000243675300034 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140593]  |
| 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 | Shi, Weiyu,Yi, Baolian,Hou, Ming,et al. The influence of hydrogen sultide on proton exchange membrane fuel cell anodes[J]. journal of power sources,2007,164(1):272-277. |
| APA | Shi, Weiyu,Yi, Baolian,Hou, Ming,Jing, Fenning,Yu, Hongmei,&Ming, Pingwen.(2007).The influence of hydrogen sultide on proton exchange membrane fuel cell anodes.journal of power sources,164(1),272-277. |
| MLA | Shi, Weiyu,et al."The influence of hydrogen sultide on proton exchange membrane fuel cell anodes".journal of power sources 164.1(2007):272-277. |
入库方式： OAI收割
来源：大连化学物理研究所
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