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Effects of the graphene content and the treatment temperature on the supercapacitive properties of VOx/graphene nanocomposites
Alternative TitleColloid Surf. A-Physicochem. Eng. Asp.
Li, Hongling1; Wei, Jiao2; Qian, Yanan1; Zhang, Jianling1; Yu, Jian1; Wang, Guosheng2; Xu, Guangwen1
2014-05-01
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume449Issue:1Pages:148-156
AbstractThe vanadium oxides (VOx)/graphene hybrid materials constructed from 2D graphene nanosheets (GNS) and VOx are successfully prepared by a simple two-step procedure including solvothermal method and subsequent thermal treatment. Effects of the GNS content and the annealing temperature on the microstructure and morphology of as-obtained composites are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. Importantly, the electrochemical properties of as-prepared composites are systematically investigated by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy, which are highly dependent on the content of GNS in composite and the annealing temperature. Furthermore, the VOx-7.4% GO-300 composite electrode exhibits the largest specific capacitance and the most excellent rate capability among these composites. These encouraging results illustrate the exciting potential for high performance energy storage devices based on the VOx-7.4% GO-300 composite. (C) 2014 Published by Elsevier B.V.; The vanadium oxides (VOx)/graphene hybrid materials constructed from 2D graphene nanosheets (GNS) and VOx are successfully prepared by a simple two-step procedure including solvothermal method and subsequent thermal treatment. Effects of the GNS content and the annealing temperature on the microstructure and morphology of as-obtained composites are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. Importantly, the electrochemical properties of as-prepared composites are systematically investigated by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy, which are highly dependent on the content of GNS in composite and the annealing temperature. Furthermore, the VOx-7.4% GO-300 composite electrode exhibits the largest specific capacitance and the most excellent rate capability among these composites. These encouraging results illustrate the exciting potential for high performance energy storage devices based on the VOx-7.4% GO-300 composite. (C) 2014 Published by Elsevier B.V.
KeywordGraphene Vanadium Oxides Nanocomposite Electrode Material Supercapacitor
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.colsurfa.2014.03.001
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLITHIUM-ION BATTERIES ; ELECTROCHEMICAL ENERGY-STORAGE ; VANADIUM-OXIDE NANOWIRE ; HIGH-PERFORMANCE ; ELECTRODES ; COMPOSITE ; CARBON ; DESIGN ; ARCHITECTURE ; CAPACITORS
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000335202400017
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10923
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Shenyang Inst Chem Technol, Sch Chem Engn, Shenyang 110142, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Li, Hongling,Wei, Jiao,Qian, Yanan,et al. Effects of the graphene content and the treatment temperature on the supercapacitive properties of VOx/graphene nanocomposites[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2014,449(1):148-156.
APA Li, Hongling.,Wei, Jiao.,Qian, Yanan.,Zhang, Jianling.,Yu, Jian.,...&Xu, Guangwen.(2014).Effects of the graphene content and the treatment temperature on the supercapacitive properties of VOx/graphene nanocomposites.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,449(1),148-156.
MLA Li, Hongling,et al."Effects of the graphene content and the treatment temperature on the supercapacitive properties of VOx/graphene nanocomposites".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 449.1(2014):148-156.
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