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The evolution of surface charge on graphene oxide during the reduction and its application in electroanalysis
Alternative TitleCarbon
Li, Ming-jie1,2,3,4,5; Liu, Chen-ming2,3,4; Xie, Yong-bing2,3,4; Cao, Hong-bin2,3,4; Zhao, He2,3,4; Zhang, Yi1,2,3,4,5
2014
Source PublicationCARBON
ISSN0008-6223
Volume66Issue:1Pages:302-311
AbstractA 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.; 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.
KeywordExfoliated Graphite Oxide Electrochemical Properties Activated Carbons Nanosheets Nanotubes Crystals Route Film Dna
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.carbon.2013.09.004
URL查看原文
Indexed BySCI
Language英语
WOS KeywordEXFOLIATED GRAPHITE OXIDE ; ELECTROCHEMICAL PROPERTIES ; ACTIVATED CARBONS ; NANOSHEETS ; NANOTUBES ; CRYSTALS ; ROUTE ; FILM ; DNA
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000327575200033
Citation statistics
Cited Times:61[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8092
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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.
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