DICP OpenIR
The influence of hydrogen sultide on proton exchange membrane fuel cell anodes
Shi, Weiyu; Yi, Baolian; Hou, Ming; Jing, Fenning; Yu, Hongmei; Ming, Pingwen
KeywordPemfc H2s Poisoning Cyclic Voltammetry Potential Steps
Source PublicationJOURNAL OF POWER SOURCES
2007-01-10
DOI10.1016/j.jpowsour.2006.09.073
Volume164Issue:1Pages:272-277
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectElectrochemistry ; Energy & Fuels
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS KeywordELECTRODE ASSEMBLIES ; IMPEDANCE ; PLATINUM ; SULFIDE ; ADSORPTION ; PEMFC
AbstractThe 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.
Language英语
WOS IDWOS:000243675300034
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140593
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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.
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