• 文献标题:   Bi2O2CO3 microspheres anchored on reduced graphene oxide nanosheets as electrode material for lithium ion batteries and supercapacitors
  • 文献类型:   Article
  • 作  者:   KANG WW, LIN BP, JIANG ZD, LIU ZP, FENG LL, SUN Y, ZHANG XQ, YANG H, HUANG GX, XING BL, ZHANG CX
  • 作者关键词:   bi2o2co3, positively charged functional group, reduced graphene oxide, composite material, energy storage conversion
  • 出版物名称:   MATERIALS LETTERS
  • ISSN:   0167-577X EI 1873-4979
  • 通讯作者地址:   Southeast Univ
  • 被引频次:   1
  • DOI:   10.1016/j.matlet.2019.01.027
  • 出版年:   2019

▎ 摘  要

Herein, the composite of Bi2O2CO3 microspheres anchored on reduced graphene oxide nanosheets was prepared by hydrothermal treatment of the mixture of graphene oxide and Bi2O2CO3 modified by introduction of positively charged functional groups (-NH2), and evaluated as electrode materials for lithium ion batteries and supercapacitors simultaneously for the first time. As the anode material for lithium ion batteries, the composite delivers the initial charge capacity of 646.4 mAh/g at 0.05 A/g, and also exhibits a superior cyclability with the first charge capacity of 247.5 mAh/g and 191.9 mAh/g after 100 cycles at 0.7 A/g. When used for supercapacitors, it affords a capacitance of 293 F/g at 0.5 A/g, and good rate capability of 73.7% at 10 A/g. (C) 2019 Elsevier B.V. All rights reserved.