Structural transformation in nanophase titanium dioxide

被引：20

作者：

Wu, MY

Zhang, WF ^{[1
]}

Du, ZL

Huang, YB

机构：

[1] Sci & Engn Coll Dongguan, Dept Elect Engn, Dongguan 511700, Peoples R China

[2] Henan Univ, Dept Phys, Kaifeng 475001, Peoples R China

来源：

MODERN PHYSICS LETTERS B | 1999年 / 13卷 / 05期

关键词：

D O I：

10.1142/S0217984999000233

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanophase TiO2 was prepared by a stearic acid sol-gel technique. X-ray measurements showed that the as-prepared sample is anatase TiO2 phase with an average grain size of 10.4 nm. Raman spectroscopy was used to investigate the structural transformation from anatase-to-rutile in the nanophase TiO2 annealed at a series of temperatures from 450 to 650 degrees C. The results showed that the transformation took place in a wide annealing temperature range. The related mechanism to the phase transformation is discussed according to nanometer size effect.

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页码：167 / 174

页数：8

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