Hydrothermal synthesis of Pb(Zr_(0.52)Ti_(0.48))O_3 powders at low temperature and low alkaline concentration

摘要

Pb(Zr_(0.52)Ti_(0.48))O_3 (PZT) powders were prepared by hydrothermal method. The effects of experimental parameters, including Pb/(Zr, Ti) ratio, alkaline concentration, reaction temperature and time on the product powders were studied in detail. Pure PZT powders were synthesized at suitable experimental conditions and Raman spectra confirmed the PZT with a perovskite-type structure. The homogeneous PZT powders with cubic-shaped morphology were formed at alkaline concentration of 1.2 M after reacting at 230 deg C for 2 h. The pure PZT powders obtained at low temperature and low alkaline concentration were attributed to precursors, TiCl, with high activity and mineralizer NaOH with small cation radius.