• 文献标题:   CoMoO4 Nanoparticles Anchored on Reduced Graphene Oxide Nanocomposites as Anodes for Long-Life Lithium-Ion Batteries
  • 文献类型:   Article
  • 作  者:   YAO JY, GONG YJ, YANG SB, XIAO P, ZHANG YH, KEYSHAR K, YE GL, OZDEN S, VAJTAI R, AJAYAN PM
  • 作者关键词:   comoo4, nanoparticle, reduced graphene oxide, hydrothermal synthesi, lithiumion batterie, anode material
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244 EI 1944-8252
  • 通讯作者地址:   Rice Univ
  • 被引频次:   69
  • DOI:   10.1021/am505983m
  • 出版年:   2014

▎ 摘  要

A self-assembled CoMoO4 nanoparticles/reduced graphene oxide (CoMoO4NP/rGO), was prepared by a hydrothermal method to grow 3-5 nm sized CoMoO4 particles on reduced graphene oxide sheets and used as an anode material for lithium-ion batteries. The specific capacity of CoMoO4NP/rGO anode can reach up to 920 mAh g(-1) at a current rate of 74 mA g(-1) in the voltage range between 3.0 and 0.001 V, which is close to the theoretical capacity of CoMoO4 (980 mAh g(-1)). The fabricated half cells also show good rate capability and impressive cycling stability with 8.7% capacity loss after 600 cycles under a high current density of 740 mA g(-1). The superior electrochemical performance of the synthesized CoMoO4NP/rGO is attributed to the synergetic chemical coupling effects between the conductive graphene networks and the high lithium-ion storage capability of CoMoO4 nanoparticles.