• 文献标题:   Porous spheres of TiO2 (B)/anatase entwined by graphene nanoribbons for high Li+ thorn rate performance
  • 文献类型:   Article
  • 作  者:   LI XL, LIU Y, ZHANG XL, YAO C, WANG RH, XU CH, LEI J
  • 作者关键词:   titanium dioxide, graphene nanoribbon, anode material, lithiumion batterie
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Chongqing Univ
  • 被引频次:   4
  • DOI:   10.1016/j.electacta.2018.12.027
  • 出版年:   2019

▎ 摘  要

A porous spherical hybrid of TiO2 (B)/anatase entwined by graphene nanoribbons (GNRs) was synthesized by a facile and scalable method. The entwining of GNRs can adhere on the surface of TiO2 by electrostatic interactions and prevent TiO2 nanoribbons from self-scrolling to nanotubes, facilitating large lithium storage and high rate capability. The TiO2/GNRs nanocomposite exhibited high rate capability in galvanostatic charge-discharge experiments, providing a capacity of 131 mAh g(-1) with a coulombic efficiency of 99.2% at a charge rate of 10C (1 C = 335mA g(-1)) over 1400 cycles. The appealing electrochemical performance can be attributed to the synergistic effect of TiO2 nanoribbons entwined by GNRs. (C) 2018 Elsevier Ltd. All rights reserved.