文献类型：期刊文献

中文题名：湿化学法制备纳米ATO导电粉

英文题名：Wet-chemical synthesis of ATO nanoparticle

作者：张建荣[1];顾达[1];杨云霞[1]

机构：[1]华东理工大学化学系,上海200237

年份：2002

卷号：33

期号：3

起止页码：300

中文期刊名：功能材料

外文期刊名：Journal of Functional Materials

收录：CSTPCD;;EI(收录号：2002417130724);Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：湿化学法;制备;二氧化锡;纳米粉体;掺杂

外文关键词：Crystal growth;Electric conductivity;Grain size and shape;Synthesis (chemical);Tin compounds

摘要：采用非均相成核法 ,在Sn(OH) 4 晶种上均匀生长Sb掺杂Sn(OH) 4 ,制备纳米ATO粉末。以电阻测定系统研究了合成条件如掺杂浓度、反应温度、pH值、SnCl4浓度等对最终粉末电阻性能的影响。以TG DSC热分析、XRD、TEM等手段研究了晶粒生长过程 ,XRD显示为四方金红石型结构 ,平均粒径为15nm。当Sb/Sn(mol比 ) =0 .0 5 ,pH =2 ,T =60℃ ,SnCl4=1.2～ 1.8mol·L-1时 ,粉体电阻小于 0 .5Ω。
ATO nanoparticles were prepared from Sn (OH)4 nucleus grew uniformly with Sn (OH)4 and Sb (OH)3 by heterogeneous precipitation. The effect of reaction conditions such as doping concentrations, pH, temperatures, reaction concentration on the resistance was investigated. With TG-DSC, XRD, TEM analysis, the results showed that ATO nanoparticles were tetrahedral rutile structure with average grain sizes approximately 15 nm and excellent electric properties. At the reaction condition pH=2, T=60°C, SnCl4 1.2-1.8 mol · L-1, Sb/Sn (mol ratio) 0.05, the conductivity of the ATO was less than 0.5 Ω.