SAXS study of the kinetics of formation of ZnO colloidal suspensions

被引：53

作者：

Tokumoto, MS

Pulcinelli, SH

Santilli, CV

Craievich, AF

机构：

[1] UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil

[2] USP, Inst Fis, BR-13083970 Araraquara, SP, Brazil

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 247卷

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/S0022-3093(99)00059-9

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：

We have investigated, by in situ small-angle X-ray scattering (SAXS), the kinetics of formation of zinc oxide colloidal suspensions obtained after refluxing alcoholic solution of zinc acetate and catalysed by lithium hydroxide. The experimental results demonstrate that the suspensions are composed of colloidal spheroidal particles with a multimodal size distribution. The average radius of the main mode, approximately 2 nm, is invariant but the number of these basic particles continuously increases for increasing hydrolysis reaction time. The other two modes correspond to particles with average radii close to 6 and 10 nm, respectively. The larger particles are formed by coagulation of the smaller ones. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：176 / 182

页数：7

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