超临界流体干燥法合成超微二氧化锡

Preparation of Ultrafine Sno_2 by Supercritical Fluid Drying Technology

采用溶胶－凝胶法制备出胶体，利用超临界流体干燥技术合成出高比表面，纳米级ＳｎＯ＿２超细粉体，用ｘ－射线衍射，透射电镜和比表面及孔分布测试等分析了ＳｎＯ＿２的结构，形貌及比表面。

The nanometer size SnO_2 powder was prepared by the sol-gel chemistry followedby supercritical fluid drying. The XRD,TEM and ASAP have been carried out to analyzethe structure,particle size and surface area of the powder.