Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). IV. General principle of morphology formation and effect of heat treatment

被引：58

作者：

Kajihara, K ^{[1
]}

Yao, T ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Energy Sci, Dept Fundamental Energy Sci, Sakyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2000年 / 17卷 / 02期

关键词：

macroporous titania film; morphology formation mechanism; heat treatment; sol-gel dip-coating method;

D O I：

10.1023/A:1008755703999

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：

The variation of macroscopic morphology of the titania (TiO2) films has been studied at various dipping conditions for a sol-gel dip-coating system containing poly(ethylene glycol) (PEG). The variation of macroscopic morphology is understood consistently by considering both the volume fraction of solvent phase during the phase separation and the water to alkoxide ratio in the sol film. The gel film shrinks and the average pore diameter increases concurrently with the thermal decomposition of PEG while the morphology depends less on the crystallization of titania gel.

引用

页码：173 / 184

页数：12

共 24 条

[1] STRUCTURE-PROPERTY RELATIONSHIPS IN THIN-FILMS AND MEMBRANES [J].