中文摘要：

采用AOT（二-乙基己基琥珀酸酯磺酸钠）为表面活性剂,以正庚烷为油相,以四氯化锡为前驱物,采用油包水型微乳液法制备了纳米Sn O2颗粒,并借助XRD、DTA-TG、FTIR、SEM等手段系统研究了制备温度、AOT质量、溶液p H值等因素对产物性能的影响.本实验体系中的最佳工艺参数为：p H=8,水-表面活性剂摩尔比1∶2,AOT质量0.6 g,锻烧温度600℃,保温时间2 h.在最佳试验条件下所制备的Sn O2粉末平均粒径为4.1 nm,较常规沉淀法制备的Sn O2颗粒细小且团聚少,具有更好的性能.

英文摘要：

Nanoparticles of tin oxide（ Sn O2） have been prepared from water- in- oil（ W/O） microemulsions consisting of Sn Cl4,water,AOT,and n- heptane. The effects of calcination temperature,AOT contents and p H values of solution on the properties of products were studied by XRD,DTA-TG,FTIR and SEM. Results show that the optimal condition in the system is： p H value of the solution was 8,the molar ratio of water to AOT was 1 ∶ 2,the content of AOT was 0. 6 g and the products was calcined at 600 ℃ for 2 h. The tin oxide powder was found to be less than 4. 1 nm in particle diameter and to be more disperse than it prepared by the chemical precipitation method.