以SnCl4.5H2O和SbCl3为原料,采用化学共沉淀法制备了纳米级锑掺杂二氧化锡(ATO)粉体。研究了制备过程溶液pH值对ATO粉体粒径的影响。运用差热-热重(DTA-TG)、X射线衍射(XRD)、扫描电镜(SEM)等测试方法对粉体的热分解情况、晶型、粒径及形貌进行了表征。研究结果表明,ATO粉体为四方金红石型结构,平均粒径为60nm左右,团聚较少。 Using SnCl4.5H2O and SbCl3 as raw materials, nano-sized antimony-doped tin oxide (ATO) powder was prepared by chemical coprecipitation method. The effect of pH value of preparation solution on the particle size of ATO powder was studied. The thermal decomposition, crystal form, particle size and morphology of the powders were characterized by DTA-TG, X-ray diffraction and scanning electron microscopy. The results show that the ATO powder is tetragonal rutile structure, the average particle size of about 60nm, less agglomeration.