• 文献标题:   Synthesis and electrochemical properties of graphene/V2O5 xerogels nanocomposites as supercapacitor electrodes
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   XU J, SUN HJ, LI ZL, LU S, ZHANG XY, JIANG SS, ZHU QY, ZAKHAROVA GS
  • 作者关键词:   graphene/v2o5 xerogels nanocomposite, supercapacitor, electrochemical property
  • 出版物名称:   SOLID STATE IONICS
  • ISSN:   0167-2738 EI 1872-7689
  • 通讯作者地址:   Wuhan Univ Technol
  • 被引频次:   31
  • DOI:   10.1016/j.ssi.2013.10.060
  • 出版年:   2014

▎ 摘  要

The graphene/V2O5 xerogels nanocomposites were synthesized by the hydrothermal method. The structure of the samples was characterized by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). The electrochemical properties of the graphene/V2O5 xerogels nanocomposites were studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge measurements as electrode materials for supercapacitor. In the graphene/V2O5 xerogels nanocomposites, graphene sheets and the layers of V2O5 xerogels (V2O5 center dot 1.6H(2)O) were stacked together. The graphene/V2O5 xerogels nanocomposites exhibited high specific capacity and high-rate capability, delivering a specific capacitance of 195.4 F/g and 184.6 F/g at the current density of 1A/g and 10 A/g between 0 and 0.65 V, respectively. (C) 2013 Elsevier B.V. All rights reserved.