Synthesis and Electrochemical Properties of TiO2−B@C Core−Shell Nanoribbons

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• 作者：Quanjun Li ; Jingwei Zhang ; Bingbing Liu ; Ming Li ; Shidan Yu ; Lin Wang ; Zepeng Li ; Dedi Liu ; Yuanyuan Hou ; Yonggang Zou ; Bo Zou ; Tian Cui ; Guangtian Zou
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：June 2008
• 年：2008
• 卷：8
• 期：6
• 页码：1812 - 1814
• 全文大小：180K
• 年卷期：v.8,no.6(June 2008)
• ISSN：1528-7505

文摘

Here, we report the first synthesis of TiO₂−B@C core−shell nanoribbons by a simple hydrothermal route. The as-prepared single-crystalline TiO₂−B nanoribbon cores are up to tens of micrometers in length and 50−200 nm in width. The nanoribbons are sheathed with a thin layer of carbon. The possible formation mechanism of the TiO₂−B@C core−shell nanoribbons has been elucidated. Furthermore, we tested the electrochemical intercalation properties with Li⁺ of the as-prepared TiO₂−B@C nanoribbons, which showed higher discharge capacity than those of bare TiO₂−B nanowires and nanotubes. It was found that the morphology and the structure of the TiO₂−B@C nanoribbons had important influence on the electrochemical intercalation properties.