Preparation Of ATO Nano-conductive Materials And Performance Research Of Oxide Doped ATO Powder

In this paper, a detailed introduction of ATO(antimony doped tin oxide) electric nanometer-sized powder was provided, mainly including the characteristics, common conductive mechanism, and preparation methods. ATO electric nanometer-sized powder, which have perfect properties such as electrical conductivity and light-colored transparence, such as antistatic material is in the spotlight have a broad market prospect. In this dissertation, SnCl4·5H2O and SbCl3 were used as the raw materials. ATO powder have been prepared by hydrothermal synthesis. Different measurements such as X-ray diffraction (XRD) and transmission electron microscopy (TEM) were applied for the ATO powder characterization tests. The powder's conductivity also had been tested.Based on the result of those measurements, the effects of preparation technics such as Sb/Sn molar ratio, pH, hydrothermal reaction temperature on the particle size and the ATO conductive properties were systematically investigated. What's more, the mechanism of optimum process parameters was explored, namely Sb/Sn molar ratio of 7%, pH 2, reaction temperature at 180℃. ATO produced under these conditions resistivity of 2.1(?·cm) and diameter of 6.1(nm).Hydrothermal synthesis is the good solution to the reunion of preparation process, well improve the performance of powders. There is almost no powder agglomeration There is also an introduction about the electrical conductivity change mechanism of oxide doped ATO. Take ATO powder which is under the optimum parameters as a reference standard of different oxide (manganese-doped oxide. titanium dioxide, zinc oxide) doped ATO. The influence about the conductivity and particle size of the ATO : the impact of manganese-doped oxide, titanium dioxide, Zinc Oxide 59.2%,17.6%,62.8% reduce the rate of resistance. Titania-doped little effect on the particle size, and doped zinc oxide and manganese oxide will increase the particle size.Products are compared with the performance of similar products from domenstic market. The electrical resistivity of samples prepared under optimum conditions is 2.1(Ω·cm), much better than similar products 10(Ω·cm). This study was a new research to explore nano ATO powder's preparation and achieved notable results.