The evolution of surface charge on graphene oxide during the reduction and its application in electroanalysis

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	The evolution of surface charge on graphene oxide during the reduction and its application in electroanalysis
	Li, Ming-jie 1,2,3,4,5; Liu, Chen-ming 2,3,4; Xie, Yong-bing 2,3,4; Cao, Hong-bin 2,3,4; Zhao, He 2,3,4; Zhang, Yi 1,2,3,4,5
刊名	CARBON
	2014
卷号	66 期号:1 页码:302-311
关键词	exfoliated graphite oxide electrochemical properties activated carbons nanosheets nanotubes crystals route film dna
ISSN号	0008-6223
其他题名	Carbon
中文摘要	A series of reduced graphene oxide (RGO) colloids with different amounts of surface charges was prepared. The change in surface charge at different pH values was detected by zeta potential measurement, and the evolution of oxygen-containing functional groups attached to the RGOs was analysed by Fourier-transform infrared spectroscopy and ultraviolet-visible absorption spectroscopy. Results showed that the edge phenolic hydroxyl and carboxyl groups made more contributions to the negative surface charge compared with the basal-plane hydroxyl and epoxy groups. Electrical impedance spectroscopy results proved that the surface charge of RGOs significantly affected their electrochemical properties. Furthermore, GO and RGOs (graphene oxide materials) were also used to construct electrochemical sensors for quantitive measurement of Cu2+ by differential pulse anodic stripping voltammetry. The results revealed that the increase in negative surface charge on RGO enhanced its electrocatalytic activity for Cu2+ reduction. Thus, considering that studies on the properties of graphene oxide materials can be simplified by the surface charge, its analysis is an important means of material characterisation. (C) 2013 Elsevier Ltd. All rights reserved.
英文摘要	A series of reduced graphene oxide (RGO) colloids with different amounts of surface charges was prepared. The change in surface charge at different pH values was detected by zeta potential measurement, and the evolution of oxygen-containing functional groups attached to the RGOs was analysed by Fourier-transform infrared spectroscopy and ultraviolet-visible absorption spectroscopy. Results showed that the edge phenolic hydroxyl and carboxyl groups made more contributions to the negative surface charge compared with the basal-plane hydroxyl and epoxy groups. Electrical impedance spectroscopy results proved that the surface charge of RGOs significantly affected their electrochemical properties. Furthermore, GO and RGOs (graphene oxide materials) were also used to construct electrochemical sensors for quantitive measurement of Cu2+ by differential pulse anodic stripping voltammetry. The results revealed that the increase in negative surface charge on RGO enhanced its electrocatalytic activity for Cu2+ reduction. Thus, considering that studies on the properties of graphene oxide materials can be simplified by the surface charge, its analysis is an important means of material characterisation. (C) 2013 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Materials Science
关键词[WOS]	EXFOLIATED GRAPHITE OXIDE ; ELECTROCHEMICAL PROPERTIES ; ACTIVATED CARBONS ; NANOSHEETS ; NANOTUBES ; CRYSTALS ; ROUTE ; FILM ; DNA
收录类别	SCI
原文出处	://WOS:000327575200033
语种	英语
WOS记录号	WOS:000327575200033
公开日期	2014-05-06
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/8092]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 4.Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China 5.Tianjin Univ, Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Li, Ming-jie,Liu, Chen-ming,Xie, Yong-bing,et al. The evolution of surface charge on graphene oxide during the reduction and its application in electroanalysis[J]. CARBON,2014,66(1):302-311.
APA	Li, Ming-jie,Liu, Chen-ming,Xie, Yong-bing,Cao, Hong-bin,Zhao, He,&Zhang, Yi.(2014).The evolution of surface charge on graphene oxide during the reduction and its application in electroanalysis.CARBON,66(1),302-311.
MLA	Li, Ming-jie,et al."The evolution of surface charge on graphene oxide during the reduction and its application in electroanalysis".CARBON 66.1(2014):302-311.