Preparation of Barium Titanate Nanoparticles by Sol-gel Method
Using tetrabutyl titanate and barium acetate as raw materials,ethanol and acetic acid as solvents,barium titanate nano powders were prepared by sol-gel method.Through XRD,SEM and TG-DTA analysis,the optimal process conditions were determined as follows:gel temperature 70℃,pH value of mixed solution 3.0～4.0,and heat treatment temperature 800℃.A single perovskite phase barium titanate powder with a particle size of about 50 nm could be obtained.
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