Abstract
Spherical SrTiO 3 nanoparticles with diameters of 15–35 nm were successfully synthesized by a solid phase grinding followed by low-temperature (400–600 °C) calcination method, using strontium hydroxide and tetrabutyl titanate as reactants. The as-synthesized samples were characterized by XRD, FT-IR, SEM and TEM, and the formation process of the products was investigated by means of TG-DTA. The results show that the as-synthesized SrTiO 3 nanoparticles with uniform sizes belong to cubic perovskite structure. The crystallite size and crystallinity increase with the increasing of calcination temperature. In the meantime, the crystal water contained in the reactant of strontium hydroxide also affects the crystallinity of products.
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