Low temperature crystallization behavior of TiO2 derived from a sol-gel process

被引：15

作者：

Hart, Judy N.

Bourgeois, Laure

Cervini, Raoul

Cheng, Yi-Bing ^{[1
]}

Simon, George P.

Spiccia, Leone

机构：

[1] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia

[2] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2007年 / 42卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

TiO2; sol-gel; crystallization; anatase;

D O I：

10.1007/s10971-007-1536-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

TiO2 nanoparticles are widely used for many applications and an understanding of the crystallization behavior of TiO2 is essential, so that heat treatment conditions can be optimized for particular applications. The effect of sol-gel synthesis conditions on the crystallization behavior of TiO2 has, therefore, been investigated. Complete crystallization to the anatase phase (determined by XRD and TEM analysis) was achieved during drying of the synthesis product at 95 degrees C. The nanoparticles grew during heat treatment, reaching similar to 10-15 nm in diameter with a heat treatment at 450 degrees C. Explanations are offered for the observed differences in the crystallization and particle growth behavior of TiO2 synthesized under various conditions.

引用

页码：107 / 117

页数：11

共 20 条

[1] Variation of structural and optical properties of sol-gel TiO2 thin films with catalyst concentration and calcination temperature [J].