Preparation of nano-crystalline SrTiO3 powder in sol-gel process

SrTiO3 nano-powder in the sol-gel process was prepared with Sr(NO3)2 and Ti(C4H9O)4 materials in order to acquire uniform size grains and even doping. The thermal treating conditions were selected out through DTA/TGA analysis of the powder. The crystallinity and purity of the powder were studied with X-ray diffraction spectrometer. The size and the distribution of SrTiO3 grains were tested by transmission electron microscope (TEM). The effects of CH3COOH and water concentration on the qualities of SrTiO3 powder were studied and the proper process preparing powder was optimized.