☆ 4.2 Article Proceedings Paper

Preparation and Electrochemical Properties of Graphene-modified TiO2 (Anatase) Nanotubes Composite for Lithium-ion Batteries

INTEGRATED FERROELECTRICS (2013)

期刊

INTEGRATED FERROELECTRICS

卷 144, 期 1, 页码 66-72

出版社

TAYLOR & FRANCIS LTD

DOI: 10.1080/10584587.2013.787238

关键词

Graphene; TiO2 nanotubes; composite; lithium-ion batteries

类别

Engineering, Electrical & Electronic Physics, Applied Physics, Condensed Matter

资金

Chinese Academy of Sciences [LHXZ200902]
National Natural Science Foundation of China [51102276, 21103225]
West Light Foundation of the Chinese Academy of Sciences [XBBS201111]
Special Found of young science and technology innovation of Xinjiang Production and Construction Crops of China [2012CB016]
Project of science and technology development research of Xinjiang Shihezi University of China [ZRKX2010YB11]

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Protocol

Reagent

摘要

TiO2 nanotubes decorated with graphene hybrid material was prepared via a green route, namely, both synthesis of nano tubular TiO2 and reduction of GO were simultaneously carried out in alkali solution under solvothermal conditions. The as-prepared nanocomposite was used for investigation of Li-ion insertion properties. TEM analysis highlights the excellent crystallinity of the anatase TiO2 nanotubes, 5 approximate to 7 nm in external diameter and several hundred nanometers in length, loaded on graphene sheets. The composite exhibits a high capacity and about 0.8 Li per TiO2 can be delivered in the first discharge and charge at a current density of 0.1 C, larger than the values for the TNs (0.6 Li per TiO2). The electrochemical performance of the composite is superior to that of the bare TNs anode, indicating a positive synergistic effect of nanotubular TiO2 and graphene.

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