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题名: Cobalt oxyphosphide as oxygen reduction electrocatalyst in proton exchange membrane fuel cell
作者: Wang, Meiri1;  Zhang, Huamin1;  Zhong, Hexiang1;  Ma, Yuanwei1, 2
关键词: Proton exchange membrane fuel cell ;  Oxygen reduction reaction ;  Pt-free electrocatalyst ;  Cobalt oxyphosphide
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011
DOI: 10.1016/j.ijhydene.2010.09.065
卷: 36, 期:1, 页:720-724
收录类别: SCI
文章类型: Article
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
英文摘要: The cobalt oxyphosphides supported on carbon black were prepared using incipient wetness method and characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The possibility of their application as the electrocatalyst for oxygen reduction reaction (ORR) in proton exchange membrane fuel cell (PEMFC) was investigated and the electrocatalytic activities were evaluated by the electrochemical measurements and single cell test, respectively. The electrocatalyst presents attractive catalytic activity towards ORR and good stability in acid media and exhibits an onset potential for oxygen reduction as high as 0.69 V (RHE) in H(2)SO(4) solution. The maximum power density obtained in a H(2)/O(2) PEMFC is 57 mW cm(-2) with Co(4)P(2)O(9)/C loading of 1.13 mg cm(-2). No significant performance degradation is observed over 50 h of continuous fuel cell operation. The combination of heteroatom P with nanostructured oxides with high stability, excellent functionality and low cost which are prerequisites for large-scale applications, probably provide a new solution for the critical challenge of finding effective cathode materials for PEMFC. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: TRANSITION-METAL SULFIDES ;  O-2 ELECTROREDUCTION ;  CATALYSTS ;  CATHODE ;  ALLOY
语种: 英语
WOS记录号: WOS:000288102700078
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142563
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Proton Exchange Membrane Fuel Cell Key Mat & Tech, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Wang, Meiri,Zhang, Huamin,Zhong, Hexiang,et al. Cobalt oxyphosphide as oxygen reduction electrocatalyst in proton exchange membrane fuel cell[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(1):720-724.
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