High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis

doi:10.1021/acsnano.9b04447

IMR OpenIR

	High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis
	Wei, Qinwei 1,2; Pei, Songfeng 1; Wen, Guodong 1; Huang, Kun 1; Wu, Zhaohong 1,2; Liu, Zhibo 1; Ma, Wei 1,2; Cheng, Hui-Ming 1,2,3; Ren, Wencai 1,2
通讯作者	Ren, Wencai(wcren@imr.ac.cn)
	2019-08-01
发表期刊	ACS NANO
ISSN	1936-0851
卷号	13 期号:8 页码:9482-9490
摘要	The strong quantum confinement effect as well as abundant edges and oxygen functional groups enable nano-graphene oxide (NGO) a variety of intriguing applications such as catalysis, bioimaging, drug delivery and photovoltaic devices. However, the development of NGO is severely hindered because of the difficulty in controlled mass production. Here, we report the efficient synthesis of NGO with a high yield of similar to 40 wt % by water electrolytic oxidation of glassy carbon (GC). The NGO shows a high oxidation degree (C/O atomic ratio, similar to 1.4) and excellent dispersion stability. Moreover, its size can be easily tuned by the graphitization degree of GC, which enables the controlled synthesis of NGO with average size of 4, 8, and 13 nm and different oxygen functional groups. As metal-free catalysts, the 13 nm sized NGO is found to be beneficial for the oxidative coupling reaction of benzylamine, while the 4 nm sized NGO shows a conversion rate of 88 times higher than 13 nm sized NGO for the oxidation reaction of benzene. In addition, the water electrolytic oxidation mechanism of graphitic materials is systematically studied. It is found that sulfuric acid has a protective effect on the graphite electrode during the water electrolytic oxidation process, and 50 wt % sulfuric acid solution well balances the protection and oxidation processes, leading to the highest oxidation efficiency and production rate.
关键词	glassy carbon graphene oxide quantum dot electrochemical method oxidation mechanism metal-free catalyst
资助者	National Key R&D Program of China ; National Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences ; Liaoning Revitalization Talents Program ; Open Fund Program of Material Corrosion and Protection Key Laboratory of Sichuan Province
DOI	10.1021/acsnano.9b04447
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2016YFA0200101] ; National Science Foundation of China[51325205] ; National Science Foundation of China[51290273] ; National Science Foundation of China[51872295] ; National Science Foundation of China[51521091] ; National Science Foundation of China[51861135201] ; National Science Foundation of China[21503241] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30000000] ; Chinese Academy of Sciences[174321KYSB20160011] ; Liaoning Revitalization Talents Program[XLYC1808013] ; Open Fund Program of Material Corrosion and Protection Key Laboratory of Sichuan Province[2014CL04]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000484077800098
出版者	AMER CHEMICAL SOC
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135223
专题	中国科学院金属研究所
通讯作者	Ren, Wencai
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Tsinghua Univ, TBSI, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Wei, Qinwei,Pei, Songfeng,Wen, Guodong,et al. High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis[J]. ACS NANO,2019,13(8):9482-9490.
APA	Wei, Qinwei.,Pei, Songfeng.,Wen, Guodong.,Huang, Kun.,Wu, Zhaohong.,...&Ren, Wencai.(2019).High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis.ACS NANO,13(8),9482-9490.
MLA	Wei, Qinwei,et al."High Yield Controlled Synthesis of Nano-Graphene Oxide by Water Electrolytic Oxidation of Glassy Carbon for Metal-Free Catalysis".ACS NANO 13.8(2019):9482-9490.