PREPARATION OF MONODISPERSE COMPOSITE-PARTICLES BY HYDROLYSIS OF METAL ALKOXIDES WITH SEED PARTICLES

被引：15

作者：

HASEGAWA, M

KIMATA, M

ISHIBASHI, S

KANDA, Y

机构：

[1] Department of Materials Science and Engineering, Yamagata University

来源：

KAGAKU KOGAKU RONBUNSHU | 1995年 / 21卷 / 05期

关键词：

COMPOSITE PARTICLE; SEED PARTICLE; HYDROLYSIS; ALKOXIDE; SILICA; TITANIA;

D O I：

10.1252/kakoronbunshu.21.879

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Silica particles of micron size were prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS) with silica seed particles synthesized by Stober's method. Monodisperse silica particles larger than 1 mu m in diameter were found to be produced by controlling the total surface area of seed particles. The final particle size in this seed growth technique could be predicted if an apparent rate constant of hydrolysis was measured. The preparation of monodisperse composite particles of silica-titania was also attempted by the hydrolysis of titanium tetraisopropoxide (TTIP) with silica seed particles. It was found the monodisperse composite particles of silica-titania were obtained by continuous addition of water.

引用

页码：879 / 885

页数：7

共 12 条

[1]

BARRINGER EA, 1982, J AM CERAM SOC, V65, pC199, DOI 10.1111/j.1151-2916.1982.tb09948.x

[2]

Blaaderen A., 1992, J COLLOID INTERF SCI, V154, P481, DOI [DOI 10.1016/0021-9797(92)90163-G, 10.1016/0021-9797(92)90163-G]

[3] PREPARATION OF MONODISPERSE SILICA PARTICLES - CONTROL OF SIZE AND MASS FRACTION [J].