PREPARATION OF TIO2 POWDERS WITH DIFFERENT MORPHOLOGIES BY AN OXIDATION HYDROTHERMAL COMBINATION METHOD

被引：36

作者：

CHEN, QW ^{[1
]}

QIAN, YT ^{[1
]}

CHEN, ZY ^{[1
]}

ZHOU, GI ^{[1
]}

ZHANG, YH ^{[1
]}

机构：

[1] UNIV SCI & TECHNOL CHINA,ACAD SINICA,STRUCT RES LAB,HEFEI 230026,PEOPLES R CHINA

来源：

MATERIALS LETTERS | 1995年 / 22卷 / 1-2期

关键词：

Additives - Ceramic materials - Crystalline materials - Gelation - Heat treatment - Morphology - Oxidation - pH effects - Phase transitions - Powders - Thermal effects;

D O I：

10.1016/0167-577X(94)00227-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultrafine powders of TiO2 with different morphologies were prepared by a combination method of Ti-H2O2 oxidation-hydrothermal growth. Both oxidation and gel (TiO2.xH(2)O) formation were performed at room temperature. Hydrothermal treatment was carried out at 140 to 200 degrees C. The results show that the pH value, reaction temperature and time, and the nature of additives can affect the particle shapes. The effects of hydrothermal parameters on the formation of crystalline phase are also discussed.

引用

页码：77 / 80

页数：4

共 10 条

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