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A study of the catalysis of cobalt hydroxide towards the oxygen reduction in alkaline media
Wang, Yi1; Zhang, Dun1; Liu, Huaiqun1,2
2010-05-15
发表期刊JOURNAL OF POWER SOURCES
卷号195期号:10页码:3135-3139
文章类型Article
摘要A cobalt hydroxide modified glassy carbon (Co(OH)(2)/GC) electrode has been fabricated by a galvanostatic electrodeposition method. The catalytic activity for the oxygen (O(2)) reduction reaction (ORR) of this electrode in alkaline media is studied by cyclic voltammetry, rotating disk electrode voltammetry, and rotating ring-disk electrode voltammetry. The O(2) reduction at the Co(OH)2/GC disk electrode has been found to undergo an electrochemical process followed by sequential disproportionation of the electrochemical reduction intermediates, i.e.. superoxide anion (O(2)(center dot-)) and hydrogen peroxide anion (HO(2)(-)) in 0.1 M KOH solution. The Co(OH)2 is first found to possess an excellent catalytic activity not only for the disproportionation of the O(2)(center dot-) produced into O(2) and HO(2)(-) but also for that of the HO(2)(-) produced, combined with electrochemical reduction of O(2) mediated by surface functional groups at the carbon electrode surface. The Co(OH)(2) is a potential electrode material for the ORR in alkaline fuel cells and metal-air batteries. (C) 2009 Elsevier B.V. All rights reserved.
关键词Cobalt Hydroxide Oxygen Reduction Reaction Glassy Carbon Electrode Catalyst Alkaline Electrolyte
DOI10.1016/j.jpowsour.2009.11.112
收录类别SCI
语种英语
WOS记录号WOS:000275074200014
引用统计
被引频次:43[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/32878
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Wang, Yi,Zhang, Dun,Liu, Huaiqun. A study of the catalysis of cobalt hydroxide towards the oxygen reduction in alkaline media[J]. JOURNAL OF POWER SOURCES,2010,195(10):3135-3139.
APA Wang, Yi,Zhang, Dun,&Liu, Huaiqun.(2010).A study of the catalysis of cobalt hydroxide towards the oxygen reduction in alkaline media.JOURNAL OF POWER SOURCES,195(10),3135-3139.
MLA Wang, Yi,et al."A study of the catalysis of cobalt hydroxide towards the oxygen reduction in alkaline media".JOURNAL OF POWER SOURCES 195.10(2010):3135-3139.
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