文献类型：期刊文献

中文题名：均匀沉淀法合成单分散SnO_2超微粒子

英文题名：Synthesis of Monodispersed SnO_2 Ultrafine Particles by Homogeneous Precipitation Method

作者：顾燕芳[1];胡黎明[1];秦大志[2];陈敏恒[1]

机构：[1]华东化工学院技术化学物理研究室国家重点固定床反应工程实验室;[2]华东化工学院化学工程系

年份：1992

卷号：18

期号：4

起止页码：520

中文期刊名：华东化工学院学报

收录：Scopus;CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：氧化锡;超微粉;沉淀法;水解;粒径

外文关键词：tin oxide; ultrafine particle; homogeneous precipitation; hydrolysis; monodispersed; particle size and its distribution

摘要：用均匀沉淀法在强制水解的反应体系中合成出均匀的SnO_2超微粒子。探讨了SnO_2超微粒子的形成和控制机理;考察了不同的操作参数对粒子性能的影响规律。合成的粒子呈棒状,单个颗粒的粒径为5.3nm,团聚体的粒径为25nm左右,单分散性能十分良好(几何标准偏差为1.4)。经800℃热处理转变成金红石型结构的SnO_2。
Monodispersed SnO_2 ultrafine particles were obtained in 'forced hydrolysis' system by homogeneous precipitation method. The process of the nucleation and growth of SnO_2 ultrafine particles was investigated and the effects of the operation condition on the particle properties were studied systematically. The particles prepared are rod-like, the size of preliminary particle is 5.3nm, and the mean size of aggregate is about 25nm with narrow distribution (GSD=1.4). SnO_2 of rutile type structure is obtained by heat treatment at 800℃.