水热法合成ATO纳米粉体的研究

Preparation of Antimony Doped Tin Oxide(ATO) Nanopowders by Hydrothermal Method

以SnCl4·5H2O和SbCl3为锡源和锑源,采用水热法制备锑掺杂氧化锡(ATO)纳米粉体,分析了锑掺杂量、水热时间、水热温度对ATO纳米粉体的影响。研究结果表明:在180℃的温度下水热反应16 h后,Sb元素全部固溶进SnO2的晶格,且分布比较均匀,ATO颗粒径在10 nm左右;粉体的晶粒径随锑掺杂量的增加而逐渐减小,但随水热时间的延长而逐渐增大;随着水热温度的升高,所得粉体由无定形向晶形转变,粉体的结晶性变好。

Antimony doped tin oxide （ATO） nanopowders were prepared by hydrothermal method, using SnCl4·5H2O and SbCl3 as Sn and Sb sources. The effects of doping amount, reaction time and reaction temperature on the microstructure of ATO nanopowders were investigated. The results show that antimony is doped into SnO2 crystal lattice after being reacted at 180℃ for 16 h. The distribution of antimony in nanopowders is uniform, and the average particle size of ATO nanopowder is about 10 nm. The grain size of ATO powder decreased with the increase of Sb-doped content, while increased with the prolonging of reaction time. With the increase of reaction temperature, the phase of obtained powders changes from amorphous to crystalline, and the crystallinity became higher.