| Hydrothermal preparation and formation mechanism of titanium dioxide microcrystallites |
| |
| 作者姓名： | 郑燕青 施尔畏 元如林 李汶军 王步国 仲维卓 胡行方 |
| |
| 作者单位： | 1. Shanghai Institute of Ceramics，Chinese Academy of Sciences，Shanghai 200050，China; 2，East China College of Geology，Fuzhou 344000，China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 59772002). |
| |
| 摘 要： | Hydrothermal preparation experiments of TiO_2 microcrystallites were carried out. The formation of TiO_2 microcrystallites of polymorpbic forms was related to the precursor types and the basicity or acidity of reaction mediums under hydrothermal conditions. Based on the "growth unit" model, the space lattice graphs of growth units responding to different polymorphs were established. The stable energy of growth unit was calculated for different basicity or acidity of reaction mediums. The formation of polymorphic TiO_2 microcrystallites under hydrothermal conditions was discussed based on the experimental results.
|
| 收稿时间： | 26 March 2007 |
Hydrothermal preparation and formation mechanism of titanium dioxide microcrystallites |
| |
| Yanqing Zheng,Erwei Shi,Rulin Yuan,Wenjun Li,Buguo Wang,Weizhuo Zhong,Xingfang Hu.Hydrothermal preparation and formation mechanism of titanium dioxide microcrystallites[J].Science in China(Technological Sciences),1999,42(3):302-311. |
| |
| Authors: | Yanqing Zheng Erwei Shi Rulin Yuan Wenjun Li Buguo Wang Weizhuo Zhong Xingfang Hu |
| |
| Affiliation: | (1) Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050 Shanghai, China;(2) East China College of Geology, 344000 Fuzhou, China |
| |
| Abstract: | Hydrothermal preparation experiments of Ti02 microcrystallites were carried out. The formation of Ti02 mi-crocrystallites of polymorphic forms was related to the precursor types and the basicity or acidity of reaction mediums under hydrothermal conditions. Based on the "growth unit" model, the space lattice graphs of growth units responding to different polymorphs were established. The stable energy of growth unit was calculated for different basicity or acidity of reaction mediums. The formation of polymorphic Ti02 microcrystallites under hydrothermal conditions was discussed based on the experimental results. |
| |
| Keywords: | growth unit model TiO_2 microcrystallites polymorphism hydrothermal preparation |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
