The structure of trititanate nanotubes
The structure of trititanate nanotubes
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DOI：
10.1107/s0108768102009084
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发表时间：
2002-08-01
期刊：
影响因子：
--
通讯作者：
Peng, LM
中科院分区：
文献类型：
--
作者：
Chen, Q;Du, GH;Peng, LM
对由TiO 2颗粒与NaOH水溶液反应合成的新型三钛酸盐纳米管进行了全面的化学和结构分析。结果表明，三钛酸盐纳米管为多壁螺旋状纳米管，壳层间距约为0.78 nm，平均直径约为9 nm。基于粉末X射线衍射、选区电子衍射、高分辨电子显微镜和结构模拟的信息，推导出纳米管的原子模型。模型纳米管可以通过沿着沿着[001]缠绕H2Ti3O7的（100）片来构造，其中管轴平行于[010]。
A comprehensive chemical and structural analysis is made of a new type of trititanate nanotube, which is synthesized via the reaction of TiO2 particles with NaOH aqueous solution. It is found that the trititanate nanotubes are multi-walled scroll nanotubes with an inter-shell spacing of about 0.78 nm and an average diameter of about 9 nm. An atomic model of the nanotube is derived based on information from powder X-ray diffraction, selective-area electron diffraction, high-resolution electron microscopy and structure simulations. A model nanotube may be constructed by wrapping a (100) sheet of H2Ti3O7 along [001] with the tube axis parallel to [010].