• 文献标题:   Construction of point-line-plane (0-1-2 dimensional) Fe2O3-SnO2/graphene hybrids as the anodes with excellent lithium storage capability
  • 文献类型:   Article
  • 作  者:   GU Y, JIAO Z, WU MH, LUO B, LEI Y, WANG Y, WANG LZ, ZHANG HJ
  • 作者关键词:   fe2o3sno2/graphene, pointlineplane structure, synergistic interaction, anode material, lithiumion batterie
  • 出版物名称:   NANO RESEARCH
  • ISSN:   1998-0124 EI 1998-0000
  • 通讯作者地址:   Shanghai Univ
  • 被引频次:   24
  • DOI:   10.1007/s12274-016-1271-y
  • 出版年:   2017

▎ 摘  要

The assembly of hybrid nanomaterials has opened up a new direction for the construction of high-performance anodes for lithium-ion batteries (LIBs). In this work, we present a straightforward, eco-friendly, one-step hydrothermal protocol for the synthesis of a new type of Fe2O3-SnO2/graphene hybrid, in which zero-dimensional (0D) SnO2 nanoparticles with an average diameter of 8 nm and one-dimensional (1D) Fe2O3 nanorods with a length of similar to 150 nm are homogeneously attached onto two-dimensional (2D) reduced graphene oxide nanosheets, generating a unique point-line-plane (0D-1D-2D) architecture. The achieved Fe2O3-SnO2/graphene exhibits a well-defined morphology, a uniform size, and good monodispersity. As anode materials for LIBs, the hybrids exhibit a remarkable reversible capacity of 1,530 mA center dot g(-1) at a current density of 100 mA center dot g(-1) after 200 cycles, as well as a high rate capability of 615 mAh center dot g(-1) at 2,000 mA center dot g(-1). Detailed characterizations reveal that the superior lithium-storage capacity and good cycle stability of the hybrids arise from their peculiar hybrid nanostructure and conductive graphene matrix, as well as the synergistic interaction among the components.