Electrocatalytic activity of nitrogen-doped graphene synthesized via a one-pot hydrothermal process towards oxygen reduction reaction

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	Electrocatalytic activity of nitrogen-doped graphene synthesized via a one-pot hydrothermal process towards oxygen reduction reaction
	Wu, Jiajia1,2 ; Zhang, Dun 1; Wang, Yi1 ; Hou, Baorong 1
刊名	JOURNAL OF POWER SOURCES
	2013-04-01
卷号	227 页码:185-190
关键词	Oxygen reduction reaction Electrocatalysis Nitrogen-doped graphene Hydrothermal synthesis
ISSN号	0378-7753
通讯作者	Zhang, D
中文摘要	Nitrogen-doped graphene (NG) materials have been prepared by hydrothermal reaction of graphite oxide (GO) with urea, and their electrocatalytic properties towards oxygen reduction reaction in 0.1 M KOH are investigated. The introduction of urea leads to successful nitrogen insertion in the form of pyridinic, pyrrolic, and graphitic bonding configurations with enhanced reduction of GO, and an increase in the mass ratio between urea and GO gives higher nitrogen contents, which is accompanied by more defects in microstructure. Reduction of O-2 to OH- at lower overpotentials is favored by the incorporation of nitrogen, and the activity of NG is closely associated with nitrogen contents and microstructure. NG materials with ca. 7% nitrogen contents and moderate defect densities prepared from mass ratios of 1:200 and 1:300 (GO/urea) show the best performance. (C) 2012 Elsevier B.V. All rights reserved.
英文摘要	Nitrogen-doped graphene (NG) materials have been prepared by hydrothermal reaction of graphite oxide (GO) with urea, and their electrocatalytic properties towards oxygen reduction reaction in 0.1 M KOH are investigated. The introduction of urea leads to successful nitrogen insertion in the form of pyridinic, pyrrolic, and graphitic bonding configurations with enhanced reduction of GO, and an increase in the mass ratio between urea and GO gives higher nitrogen contents, which is accompanied by more defects in microstructure. Reduction of O-2 to OH- at lower overpotentials is favored by the incorporation of nitrogen, and the activity of NG is closely associated with nitrogen contents and microstructure. NG materials with ca. 7% nitrogen contents and moderate defect densities prepared from mass ratios of 1:200 and 1:300 (GO/urea) show the best performance. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	Electrochemistry ; Energy & Fuels
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Electrochemistry ; Energy & Fuels
研究领域[WOS]	Electrochemistry ; Energy & Fuels
关键词[WOS]	ALKALINE MEDIA ; CATALYTIC-ACTIVITY ; CARBON ELECTRODES ; GRAPHITE OXIDE ; FUEL-CELLS ; PERFORMANCE ; PYROLYSIS
收录类别	SCI
原文出处	10.1016/j.jpowsour.2012.11.074
语种	英语
WOS记录号	WOS:000315309900028
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16364]
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, Natl Engn Res Ctr Marine Corros Protect, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jiajia,Zhang, Dun,Wang, Yi,et al. Electrocatalytic activity of nitrogen-doped graphene synthesized via a one-pot hydrothermal process towards oxygen reduction reaction[J]. JOURNAL OF POWER SOURCES,2013,227:185-190.
APA	Wu, Jiajia,Zhang, Dun,Wang, Yi,&Hou, Baorong.(2013).Electrocatalytic activity of nitrogen-doped graphene synthesized via a one-pot hydrothermal process towards oxygen reduction reaction.JOURNAL OF POWER SOURCES,227,185-190.
MLA	Wu, Jiajia,et al."Electrocatalytic activity of nitrogen-doped graphene synthesized via a one-pot hydrothermal process towards oxygen reduction reaction".JOURNAL OF POWER SOURCES 227(2013):185-190.