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学科主题物理化学
In-situ investigation on the CO tolerance of carbon supported Pd-Pt electrocatalysts with low Pt content by electrochemical impedance spectroscopy
Tang, Yongfu1,2; Zhang, Huamin1; Zhong, Hexiang1; Xu, Zhuang1,2; Zhang HM(张华民)
关键词Proton Exchange Membrane Fuel Cells (Pemfcs) Low-pt Catalysts Pd-pt Electrocatalysts Hydrogen Oxidation Reaction (Hor) Co Tolerance Electrochemical Impedance Spectroscopy (Eis)
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2012-02-01
DOI10.1016/j.ijhydene.2011.10.104
37期:3页:2129-2136
收录类别SCI
文章类型Article
部门归属DNL17
项目归属DNL17
产权排名1,1
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]PEM FUEL-CELLS ; GAS-DIFFUSION ELECTRODES ; H-2/CO MIXTURES ; ELECTROOXIDATION ; PLATINUM ; OXIDATION ; METHANOL ; MECHANISM ; CATALYSTS ; MONOXIDE
英文摘要Carbon supported Pd-Pt electrocatalysts (Pd-Pt/C) with low Pt content were investigated in proton exchange membrane fuel cells (PEMFCs) with pure H-2 and CO/H-2 as the feeding fuels, respectively. The Pd-Pt/C catalysts showed high activity for hydrogen oxidation reaction (HOR) and improved CO tolerance. Electrochemical impedance spectroscopy (EIS) was employed to probe the in-situ information of the improved CO tolerance. The dependence of Nyquist plots and Bode plots on current density and feeding gas was investigated in low polarization region. The results of EIS analysis indicated that the improved CO tolerance of Pd-Pt/C catalysts can be attributed to the lower coverage of CO on the Pd-Pt bimetal than that on the pure Pt. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000301157300007
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/118188
专题中国科学院大连化学物理研究所
通讯作者Zhang HM(张华民)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Tang, Yongfu,Zhang, Huamin,Zhong, Hexiang,et al. In-situ investigation on the CO tolerance of carbon supported Pd-Pt electrocatalysts with low Pt content by electrochemical impedance spectroscopy[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(3):2129-2136.
APA Tang, Yongfu,Zhang, Huamin,Zhong, Hexiang,Xu, Zhuang,&张华民.(2012).In-situ investigation on the CO tolerance of carbon supported Pd-Pt electrocatalysts with low Pt content by electrochemical impedance spectroscopy.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,37(3),2129-2136.
MLA Tang, Yongfu,et al."In-situ investigation on the CO tolerance of carbon supported Pd-Pt electrocatalysts with low Pt content by electrochemical impedance spectroscopy".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 37.3(2012):2129-2136.
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