A study of the catalysis of cobalt hydroxide towards the oxygen reduction in alkaline media

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	A study of the catalysis of cobalt hydroxide towards the oxygen reduction in alkaline media
	Wang, Yi1 ; Zhang, Dun 1; Liu, Huaiqun 1,2
刊名	JOURNAL OF POWER SOURCES
	2010-05-15
卷号	195 期号:10 页码:3135-3139
关键词	Cobalt hydroxide Oxygen reduction reaction Glassy carbon electrode Catalyst Alkaline electrolyte
英文摘要	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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000275074200014
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/32878]
专题	海洋研究所_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
推荐引用方式 GB/T 7714	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.