以Na2SnO3·5H2O和Sb2O3为锡锑源,HNO3为沉淀剂,采用共沉淀法制备了结晶性良好,颗粒尺寸7~10nm的Sb掺杂SnO2（ATO）纳米颗粒。借助XRD、TEM、EDS、粉体电阻率测试仪、Zeta电位测试仪等研究了合成体系pH值、洗涤方式、表面活性剂、煅烧温度等因素对ATO性能的影响。结果表明,体系pH值对粉体颗粒尺寸和电导率影响显著。优选条件下,控制合成体系pH值为3,并经800℃煅烧所得ATO的晶粒尺寸约为8nm,电阻率为0.444Ω·cm。
Antimony doped tin oxide (ATO) was synthesized by co-precipi(ation method using Na2SnO3·5H2O, Sb2O3 as raw materials, HNO3 as precipitant. The obtained nano-powders have a particle size range in 7-10nm and a good crystallinity. The influence of reaction pH value, washing method, surfactant and tempera ture on product properties were studied by means of XRD, TEM, EDS, resistance tester for powder, zeta potential measurement. The results showed that reaction pH value had significant effect on the grain size and con ductivity of ATO nano-powders. Under optimized conditions, the sample, with a resistivity of 0. 444Ω·cm, was harvested by controlling the reaction pH value at 3, calcined temperature at 800℃.
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