文献类型：期刊文献

中文题名：共沉淀条件对纳米级Sb/SnO_2粒度和电性能的影响

英文题名：Influences of the Coprecipitation Conditions on the Particle Size and Conductive Property of Nanometer-Sized Sb/SnO_2 Powder

作者：李青山[1];张金朝[1];宋鹂[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2002

卷号：19

期号：2

起止页码：163

中文期刊名：应用化学

外文期刊名：Chinese Journal of Applied Chemistry

收录：CSTPCD;;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：纳米级Sb/SnO2导电粉;共沉淀温度;pH值;微粉末特性;锑;二氧化锡;粒度;电性能

外文关键词：conductive nanometer sized Sb/SnO 2 powder,coprecipitation temperature,pH value,property

摘要：以 Sn Cl4 · 5 H2 O和 Sb Cl3为原料 ,采用共沉淀法制得了纳米级 Sn O2 超细粉 .运用 DSC-TG、XRD和TEM等观测手段对微粉末进行了表征 .比较系统地研究了共沉淀温度和 p H值对粉末颗粒度和电阻的影响规律 .研究结果表明 ,合成的纳米级 Sb/Sn O2 粉体粒度分布比较均匀、分散性较好 ,具有金红石结构 ;共沉淀温度对 Sb/Sn O2 微粉末的粒度和电导性能影响较小 ,合适的共沉淀温度为 45～ 70℃ ;粉末粒度在 p H为 4～6之间出现 1个极大值 ,该 p H值下所对应的粉末电阻较小 ,同时考虑 p H值对粒度与电性能的影响 ,最佳 p H值范围为 3～
Nanometer sized SnO 2 powders were prepared by a chemical coprecipitation method using SnCl 4·5H 2O and SbCl 3 as precursors. The characteristics of the powders were investigated by DSC TG, XRD and TEM. The influences of coprecipitation temperature and pH value on the particle size and powder resistance have been investigated. The results indicate that the powders with a homogenous particle size distribution and a good dispersivity are tetragonal rutile type antimony doped tin oxide polycrystalline particles. The particle size and powder resistance are insensitive to the coprecipitation temperature. The proper coprecipitation temperature is about 45~70 ℃. The particle size reaches a maximum at pH=4~6 whereas the corresponding resistance of the sample is smaller. The optimal range of pH value is 3~5, when both particle size and electrical property are in consideration.