喷雾热分解法制备超细SnO_2粉体及工艺参数优化  

Preparation of SnO_2 Ultrafine Particles by Spray Pyrolysis Method and Optimization of Technological Parameters

作　　者：李启厚[1] 何峰[1] 高宇波[1] 刘志宏[1] 刘智勇[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《机械工程材料》2009年第4期50-54,共5页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(50704038);高等学校博士学科点专项科研基金资助项目(20060533004);教育部科学技术研究重点资助项目(108170)

摘　　要：以SnCl4.5H2O为前驱体,采用喷雾热分解法制备了超细SnO2粉体,研究了反应温度、前驱体溶液浓度和载气流量等工艺参数对粉体粒径和形貌的影响,并对工艺参数进行了优化。结果表明:当反应温度为600℃、前驱体溶液浓度为0.6 mol.L-1、载气流量为124 L.h-1时,得到的SnO2粉体平均粒径在1.4μm左右,粒度分布均匀,结晶度高,球形度好,空心破壳少。With SnCl4 ·5H2O as precusor, SnOz ultrafine particles were prepared by spray pyrolysis method. Effects of reaction temperature, precursor solution concentration and gas flow rate on the particle size and morphology of SnO2 particles were investigated. The results show that spherical SnO2 particles with an average size of 1.4μm, uniform size distribution, good crystallinity and few shells and holes could be obtained under the experimental conditions of reaction temperature of 600 ℃, precursor solution concentration of 0. 6 mol·L^-1 and carrier gas flow rate of 124 L·h^-1.

关 键 词：喷雾热分解法 SNO2 超细粉体 

分 类 号：TF123[冶金工程—粉末冶金]