TiO2 nanoparticles on nitrogen-doped graphene as anode material for lithium ion batteries

被引：0
作者：
Dan Li
Dongqi Shi
Zongwen Liu
Huakun Liu
Zaiping Guo
机构：
[1] Institute for Superconducting and Electronic Materials,School of Chemical and Biomolecular Engineering
[2] University of Wollongong,undefined
[3] The University of Sydney,undefined
[4] School of Mechanical,undefined
[5] Materials & Mechatronics Engineering,undefined
[6] University of Wollongong,undefined
来源：
Journal of Nanoparticle Research | 2013年 / 15卷
关键词：
TiO; nanoparticles; Nitrogen-doped graphene; Hydrothermal reaction; Anode material; Lithium ion batteries;
D O I：
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中图分类号：
学科分类号：
摘要：
Anatase TiO2 nanoparticles in situ grown on nitrogen-doped, reduced graphene oxide (rGO) have been successfully synthesized as an anode material for the lithium ion battery. The nanosized TiO2 particles were homogeneously distributed on the reduced graphene oxide to inhibit the restacking of the neighbouring graphene sheets. The obtained TiO2/N-rGO composite exhibits improved cycling performance and rate capability, indicating the important role of reduced graphene oxide, which not only facilitates the formation of uniformly distributed TiO2 nanocrystals, but also increases the electrical conductivity of the composite material. The introduction of nitrogen on the reduced graphene oxide has been proved to increase the conductivity of the reduced graphene oxide and leads to more defects. A disordered structure is thus formed to accommodate more lithium ions, thereby further improving the electrochemical performance.
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