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题名: Cobalt based non-precious electrocatalysts for oxygen reduction reaction in proton exchange membrane fuel cells
作者: Ma, Yuanwei1, 2;  Zhang, Huamin1;  Zhong, Hexiang1;  Xu, Ting1, 2;  Jin, Hong1, 2;  Tang, Yongfu1, 2;  Xu, Zhuang1, 2
通讯作者: 张华民
关键词: Proton exchange membrane fuel cells ;  Non precious metal catalyst ;  Electrocatalyst ;  Oxygen reduction reaction ;  Nanocomposite
刊名: ELECTROCHIMICA ACTA
发表日期: 2010-11-30
DOI: 10.1016/j.electacta.2010.03.087
卷: 55, 期:27, 页:7945-7950
收录类别: SCI ;  ISTP
文章类型: Article
部门归属: 3
项目归属: 303
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: Cobalt based non-precious metal catalysis were synthesized using chelation of cobalt (II) by imidazole followed by heat-treatment process and investigated as a promising alternative of platinum (Pt)-based electrocatalysts in proton exchange membrane fuel cells (PEMFCs) Transmission electron microscopy (TEM) X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements were used to characterize the synthesized CoN(x)/C catalysts The activities of the catalysts towards oxygen reduction reaction (ORR) were investigated by electrochemical measurements and single cell tests respectively Optimization of the heat-treatment temperature was also explored The results indicate that the as-prepared catalyst presents a promising electrochemical activity for the ORR with an approximate four-electron process The maximum power density obtained in a H(2)/O(2) PEMFC is as high as 200 mWcm(-2) with CoN(x)/C loading of 20 mg cm(-2) (C) 2010 Elsevier Ltd All rights reserved
关键词[WOS]: FE-BASED CATALYSTS ;  CO-BASED CATALYSTS ;  O-2 REDUCTION ;  CARBON-BLACK ;  ELECTROREDUCTION ;  PYROLYSIS ;  ELECTRODE ;  NANOPARTICLES ;  POLYPYRROLE ;  TEMPERATURE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000284434700024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103521
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, PEMFC Key Mat & Technol Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Ma, Yuanwei,Zhang, Huamin,Zhong, Hexiang,et al. Cobalt based non-precious electrocatalysts for oxygen reduction reaction in proton exchange membrane fuel cells[J]. ELECTROCHIMICA ACTA,2010,55(27):7945-7950.
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