高分散钛酸钙纳米粒子的水热法制备

Abstract

Abstract: High dispersive nanometer calcium titanate (CaTiO³) powder was prepared through one-step hydrothermal method using calcium chloride and tetrabutyl titanate as raw materials,and polyvinyl alcohol as dispersant.Effects of reaction conditions on the structure and morphology of the product were studied in detail.Prepared sample was characterized by XRD,TEM,nano particle size analyzer,and TG-DSC.Results indicated that CaTiO³ powders with uniform particles,satisfactory dispersity,and a size of several nanometers can be obtained under such conditions as 200 ℃ for reaction temperature,6 h for reaction time,10 mL for PVA(4 g/L) volume,18 mL for NaOH (5 mol/L) volume and maintaining a constant total volume of 43 mL.Mechanism of PVA was also analyzed.The obtained product can still maintain a good dispersion even after sintering at high temperature.

Key words: , calcium titanate, hydrothermal method, PVA, high dispersion

CLC Number:

TQ132.32

FAN Li-Li, PENG Wen-Fang, MENG Jian-Xin-. Hydrothemal synthesis of high dispersive calcium titanate nanoparticals[J]. INORGANICCHEMICALSINDUSTRY, 2011, 43(7): 16-.

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Inorganic Acid-Base-Salt Committee of CIESC

Hydrothemal synthesis of high dispersive calcium titanate nanoparticals

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