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  • 文献标题:   Synthesis of three-dimensional graphene@Ni(OH)(2) nanoflakes on Ni foam by RF magnetron sputtering for application in supercapacitor
  • 文献类型:   Article
  • 作　　者:   ZHANG HY, QI CH, DU XJ, ZHANG H, ZHANG Y, MA TH, SUN YY
  • 作者关键词:   graphene, ni oh 2 array, magnetron sputtering, supercapacitor
  • 出版物名称:   INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • ISSN:   0360-3199 EI 1879-3487
  • 通讯作者地址:   North Univ China
  • 被引频次:   7
  • DOI:   10.1016/j.ijhydene.2019.05.067
  • 出版年:   2019

▎ 摘　　要

Three-dimensional graphene@Ni(OH)(2) nanoflake array grown on Ni foam (G/Ni(OH)(2)/NF) as a binder-free electrode of supercapacitor was prepared by combining a one-step hydro thermal approach and Radio frequency (RF) magnetron sputtering technique. Its electrochemical properties were further investigated by the cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectra. The G/Ni(OH)(2)/NF showed high specific capacitance (4.0F/cm(2) at 1.0 mA/cm(2)), good rate charge-discharge capability and long cycling stability (ca. 90.6% of its initial value). This work provides a new method to prepare 3D porous electrode materials based on graphene for application in electrochemical energy storage. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.