The size dependence of growth rate of monodisperse silica particles from tetraalkoxysilane

被引：64

作者：

Chen, SL ^{[1
]}

Dong, P ^{[1
]}

Yang, GH ^{[1
]}

机构：

[1] UNIV PETR,NATL LAB HEAVY OIL RES,BEIJING 102200,PEOPLES R CHINA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1997年 / 189卷 / 02期

基金：

中国国家自然科学基金;

关键词：

monodisperse; silica particles; growth rate; mechanism; tetraethylorthosilicate;

D O I：

10.1006/jcis.1997.4809

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The size-dependence of growth rate of monodisperse silica particles was investigated by analyzing the competitive growth of a dispersion of silica spheres with a bimodal and trimodal size distribution, It was found that under the conditions that no new particles could be formed, particles with different size grew at the same rate, demonstrating that the growth was surface reaction limited process, Under conditions of formation of new particles, however, smaller particles grew faster than larger particles, indicating that the growth proceeded through diffusion limited process. (C) 1997 Academic Press.

引用

页码：268 / 272

页数：5

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