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电化学(中英文) ›› 2006, Vol. 12 ›› Issue (4): 445-448. 

• 研究论文 • 上一篇    下一篇

TiO_2纳米管的电化学性能研究

曹彬;徐金威;丁玲红;张伟风;   

  1. 河南大学物理与电子学院,河南大学物理与电子学院,河南大学物理与电子学院,河南大学物理与电子学院 河南开封475004,河南开封475004,河南开封475004,河南开封475004
  • 收稿日期:2006-11-28 修回日期:2006-11-28 出版日期:2006-11-28 发布日期:2006-11-28

Preparation and Electrochemical Characterization of Anatase TiO_2 Nanotubes

CAO Bin,XU Jin-wei,DING Ling-hong,ZHANG Wei-feng~   

  1. (*)(School of Physics and Electronics,Henan University,Kaifeng 475004,Henan,China
  • Received:2006-11-28 Revised:2006-11-28 Published:2006-11-28 Online:2006-11-28

摘要: 以锐钛矿相TiO2粉末和氢氧化钠作原料,应用化学合成法,于高温高压反应釜中制备TiO2纳米管.TEM、XRD分析显示,所得产物为锐钛矿相四方结构的TiO2纳米管.恒流充放电、循环伏安法测试表明,该TiO2纳米管首次嵌锂容量达260 mA.h/g,可逆容量高,有希望成为未来一种较好的新型锂离子电池负极材料.

关键词: TiO2, 纳米管, 锂离子电池, 电化学

Abstract: Titanium oxide nanotubes were prepared by hydrothermal treatment of anatase-type TiO_(2) powders and NaOH solution in an autoclave.Transmission Electron Microscopy and X-ray Diffraction showed that the product is anatase-type TiO_(2) nanotubes.The constant charge-discharge current and cyclic voltammetry exhibited the TiO_(2) nanotubes have a large initial lithium insertion capacity of 260 mA·h/g and good reversibility.This study indicates that TiO_(2) nanotubes might be a good negative electrode materical for second lithium battery in the future.

Key words: TiO_(2), Nanotubes, Lithium-ion battery, Electrochemistry

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