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

文献类型：期刊论文

作者Wei, Qinwei2,3; Pei, Songfeng2; Wen, Guodong2; Huang, Kun2; Wu, Zhaohong2,3; Liu, Zhibo2; Ma, Wei2,3; Cheng, Hui-Ming1,2,3; Ren, Wencai2,3
刊名ACS NANO
出版日期2019-08-01
卷号13期号:8页码:9482-9490
ISSN号1936-0851
关键词glassy carbon graphene oxide quantum dot electrochemical method oxidation mechanism metal-free catalyst
DOI10.1021/acsnano.9b04447
通讯作者Ren, Wencai(wcren@imr.ac.cn)
英文摘要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.
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
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000484077800098
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/135222]  
专题金属研究所_中国科学院金属研究所
通讯作者Ren, Wencai
作者单位1.Tsinghua Univ, TBSI, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, 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.

入库方式： OAI收割

来源：金属研究所

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