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题名: Fe-N-carbon black for the oxygen reduction reaction in sulfuric acid
作者: Xiao, Hui1, 2;  Shao, Zhi-Gang1;  Zhang, Geng1, 2;  Gao, Yuan1, 2;  Lu, Wangting1, 2;  Yi, Baolian1
刊名: CARBON
发表日期: 2013-06-01
DOI: 10.1016/j.carbon.2013.02.017
卷: 57, 页:443-451
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: A Fe-N-C catalyst was prepared by pyrolyzing carbon black supported Fe-imidazole complexes. The effect of different pyrolysis temperatures on the catalysts' oxygen reduction reaction (ORR) activity was investigated by electrochemical rotating disk electrode tests in 0.5 M H2SO4. The Fe-N-C catalyst heat-treated at 700 degrees C was found to display the best ORR activity with a highest half-wave potential of 0.656 V vs. normal hydrogen electrode (NHE), which was only 64 mV lower than that of the commercial Pt-C (loading 10 mu g(Pt) cm(-2)), and a lowest H2O2 yield (0.6% at 0.4 V vs. NHE). Furthermore, potential cycling tests showed that the catalyst had a better electrochemical stability than Pt-C catalyst. X-ray photoelectron spectroscopy characterization of these catalysts was also conducted to identify the active nitrogen species for ORR. (C) 2013 Elsevier Ltd. All rights reserved.
关键词[WOS]: MEMBRANE FUEL-CELLS ;  HIGH ELECTROCATALYTIC ACTIVITY ;  NONPRECIOUS CATALYST ;  CATHODE CATALYSTS ;  ACTIVE-SITES ;  POLYANILINE ;  ELECTROLYTE ;  IRON ;  DENSITY ;  COBALT
语种: 英语
WOS记录号: WOS:000319030000051
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137759
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, Fuel Cell Syst & Engn Lab, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Xiao, Hui,Shao, Zhi-Gang,Zhang, Geng,et al. Fe-N-carbon black for the oxygen reduction reaction in sulfuric acid[J]. CARBON,2013,57:443-451.
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