Formation and transformation of ZnTiO3 prepared by sol-gel process

ZnTiO3 powders with pure hexagonal phase were prepared by the sol-gel process with Zn(NO3)2·6H2O and Ti(OC4H9)4 materials. The thermal behavior and phase transformation of the gels were investigated by the differential scanning calorimetry-thermogravimetry (DSC-TG) analysis, X-ray diffraction (XRD) patterns, Fourier-transforming infrared (FT-IR) spectroscopy, and Raman scattering spectroscopy. The results revealed that pure hexagonal phase of ZnTiO3 could be obtained at low temperature of 800 °C. However, in further increased temperature above 900 °C, hexagonal ZnTiO3 would decompose into cubic Zn2TiO4 and rutile TiO2.