• 文献标题:   Eco-friendly synthesis of few-layer graphene with high surface area under low temperature for supercapacitors
  • 文献类型:   Article
  • 作  者:   CHEN H, GAO H, XIAO HW, ZHOU XH, ZHANG WG, LING QD
  • 作者关键词:   graphene, layered double hydroxides ldh, confinement space, graphitization, supercapacitor
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Fujian Normal Univ
  • 被引频次:   7
  • DOI:   10.1016/j.electacta.2016.04.141
  • 出版年:   2016

▎ 摘  要

In this work, few-layered graphene nanosheets (FLG) was prepared through confinement colophony in the 2D galleries of layered double hydroxides (LDH), and followed by transformation of colophony into few-layered graphene at relatively low temperatures (800 degrees C), as well as a subsequent reflux treatment process. The obtained FLG was tested as supercapacitor electrodes, it exhibits excellent electrochemical performance in terms of specific capacitance (240 F/g at 1 A/g), durability at high current density and long-term operation (95% capacitance retention ratio over 1000 cycles at a current density of 5 A/g). The preparation strategy of lattice orientation/confinement described here provides a convenient, low-cost and eco-friend approach for developing graphene-based energy storage devices. (C) 2016 Elsevier Ltd. All rights reserved.