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《Micronanoelectronic Technology》 2008-02
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Research on Improvement of High Thermal Stability of Anatase Titania by Doping Ions

Liu Yanmin1, Zhang Ping2,Li Pingrui1,Zhang Yanfeng1,Wei Yu1 (1.College of Chemistry and Material Sciences,Hebei Normal University,Shijiazhuang 050016,China; 2. Shijiazhuang university,Shijiazhuang 050000,China)  
The suppressing effects on the anatase-to-rutile phase transformation by doping ions were studied systematically. It can be concluded that the ion dopants have large influences on the phase transition temperature and particle size. Anatase TiO2 was prepared by forced hydrolysis method under boiling reflux using TiCl4 as the raw material and NaH2PO4 as the additive in our laboratory. The obtained sample has a high stability at 1000 ℃ and the crystallite size is effectively inhibited, which are in accordance with the literatures. However, the mechanism of the phase transformation of TiO2 is not very clear now. It is important to choose appropriate additives to obtain the industrial production of anatase TiO2 with high thermal stability in future research.
【Fund】: 中国博士后科学基金会资助项目(2005038511);; 河北省自然科学基金资助项目(E2006000172);; 河北师范大学博士基金资助项目(L2005B14)
【CateGory Index】: TB383.1
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