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    National Tsing Hua University Institutional Repository > 研究中心 > 奈微與材料科技中心 > 期刊論文 >  The effect of calcination temperature on the crystallinity of TiO2 nanopowders


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/61662


    Title: The effect of calcination temperature on the crystallinity of TiO2 nanopowders
    Authors: Chen YF;Lee CY;Yeng MY;Chiu HT
    教師: 李紫原
    Date: 2003
    Publisher: Elsevier
    Relation: JOURNAL OF CRYSTAL GROWTH,Volume: 247,Issue: 3-4,Pages: 363-370,Published: JAN 2003
    Keywords: TITANIA PARTICLES
    DECOMPOSITION
    MORPHOLOGY
    CATALYSTS
    SENSOR
    Abstract: TiO2 nanopowders have been prepared using 0.1 M titanium tetraisopropoxide (TTIP) in varied pH aqueous solution containing TMC and NP-204 surfactants. Only the powder acquired from a solution of pH = 2 has a regular particle size distribution. Anatase phase powders are obtained by calcination in nitrogen in the 250-500degreesC temperature range. When calcined at 400degreesC, the diameter of the nanoparticles is approximately 10 nm with a specific surface area of 106.9 m(2)/g. As the calcination temperature is increased, the particle size increases. Rutile phase powders are formed at calcination temperatures above 600degreesC.
    URI: http://www.elsevier.com/wps/find/homepage.cws_home
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/61662
    Appears in Collections:[奈微與材料科技中心] 期刊論文

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