A novel approach to synthesis of high-dispersed anatase titania nanocrystals

被引：25

作者：

Hari-Bala ^{[1
]}

Zhao, JZ ^{[1
]}

Jiang, YQ ^{[1
]}

Ding, XF ^{[1
]}

Tian, YM ^{[1
]}

Yu, KF ^{[1
]}

Wang, ZC ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130023, Peoples R China

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 14-15期

关键词：

anatase titania; high-dispersed; nanocrystals; needle-shape; sol-gel process; forming solid substrates;

D O I：

10.1016/j.matlet.2005.02.030

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

A novel approach was employed in the synthesis of high-dispersed anatase titania (TiO2) nanocrystals by sol-gel process with NH4NO3 (AN) as solid substrates. Further calcination was conducted after the hydrous TiO2 nanoparticles were adsorbed onto the surface of AN particles. The products were investigated by TGA, XRD, and TEM. The results indicated that AN was melting and decomposing during the calcining process, which was very important to inhibit the agglomeration of anatase TiO2 nanocrystals. The highly dispersed anatase TiO2 nanocrystals were in needle-shape having lengths about 16-20 nm and diameter of 6-9 nm. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1937 / 1940

页数：4

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