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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
Source PublicationJOURNAL OF POWER SOURCES
Volume195Issue:10Pages:3135-3139
SubtypeArticle
AbstractA 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.
KeywordCobalt Hydroxide Oxygen Reduction Reaction Glassy Carbon Electrode Catalyst Alkaline Electrolyte
DOI10.1016/j.jpowsour.2009.11.112
Indexed BySCI
Language英语
WOS IDWOS:000275074200014
Citation statistics
Cited Times:47[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/32878
Collection海洋环境腐蚀与与生物污损重点实验室
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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