• 文献标题:   Mechanochemical preparation of graphene nanosheets and their supercapacitor applications
  • 文献类型:   Article
  • 作  者:   KRISHNAMOORTHY K, KIM SJ
  • 作者关键词:   graphene, mechanochemical method, raman spectrum, xps spectrum, supercapacitor
  • 出版物名称:   JOURNAL OF INDUSTRIAL ENGINEERING CHEMISTRY
  • ISSN:   1226-086X EI 1876-794X
  • 通讯作者地址:   Jeju Natl Univ
  • 被引频次:   21
  • DOI:   10.1016/j.jiec.2015.09.012
  • 出版年:   2015

▎ 摘  要

A facile method for the preparation of graphene nanosheets via mechanochemical reduction of graphene oxide (GO) has been reported. XPS and Raman analyses revealed the removal of oxygenated functional groups and the restoration of sp(2) domains in graphene after the mechanochemical reaction. Cyclic voltammetry curves showed a rectangular behavior suggesting the presence of double layer capacitance in the graphene electrodes. Graphene electrodes delivered a specific capacitance of 169 F/g as observed from the charge-discharge analysis at a current density of 1 mA/cm(2). The cyclic stability analysis revealed that about 98% of its initial capacitance was retained after 1000 cycles. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.