Graphene-based non-noble-metal Co/N/C catalyst for oxygen reduction reaction in alkaline solution

doi:10.1016/j.jpowsour.2013.06.007

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	Graphene-based non-noble-metal Co/N/C catalyst for oxygen reduction reaction in alkaline solution
	Niu, Kexing 1,2; Yang, Baoping 2; Cui, Jinfeng 2; Jin, Jutao 1; Fu, Xiaogang 1; Zhao, Qiuping 2; Zhang, Junyan 1
刊名	JOURNAL OF POWER SOURCES
	2013-12
卷号	243 页码:65-71
关键词	Non-noble-metal catalyst Oxygen reduction reaction Graphene Cobalt Alkaline
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2013.06.007
英文摘要	This study develops a promising catalyst for oxygen reduction reaction (ORR) via a simple two-step heat treatment of a mixture of cobalt(II) nitrate hexahydrate (Co(NO3)(2)center dot 6H(2)O), polyethyleneimine (PEI), and graphene oxide (GO), firstly in argon atmosphere and then in ammonia atmosphere. X-ray photoemission spectroscopy (XPS) result reveals that the catalyst has pyridinic N-dominant (46% atomic concentration among all N components) on the surface. The kinetics measurement of the catalyst in 0.1 M KOH solution using a rotating disk electrode (RDE) reveals that the catalyst (Co/N/rGO(NH3)) has high activity. Furthermore, the number of electrons exchanged during the ORR with the catalyst is determined to be similar to 3.9, suggesting that the ORR is dominated by a 4e(-) reduction of O-2 to H2O. The catalyst has good stability, and its performance is superior to the commercial Pt/C(20%) catalyst in alkaline condition, making the material a promising substitute to noble metal ORR electrocatalyst on the cathode side of fuel cells. (C) 2013 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000324846200011
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34570]
专题	图书馆石油化工学院实验室建设与管理处
通讯作者	Zhang, Junyan
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Lanzhou Univ Technol, Sch Petr Chem Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Niu, Kexing,Yang, Baoping,Cui, Jinfeng,et al. Graphene-based non-noble-metal Co/N/C catalyst for oxygen reduction reaction in alkaline solution[J]. JOURNAL OF POWER SOURCES,2013,243:65-71.
APA	Niu, Kexing.,Yang, Baoping.,Cui, Jinfeng.,Jin, Jutao.,Fu, Xiaogang.,...&Zhang, Junyan.(2013).Graphene-based non-noble-metal Co/N/C catalyst for oxygen reduction reaction in alkaline solution.JOURNAL OF POWER SOURCES,243,65-71.
MLA	Niu, Kexing,et al."Graphene-based non-noble-metal Co/N/C catalyst for oxygen reduction reaction in alkaline solution".JOURNAL OF POWER SOURCES 243(2013):65-71.