Hydrothermal synthesis of strontium titanate powders with nanometer size derived from different precursors

Nanocrystalline SrTiO3 powders have been successfully synthesized under a moderate condition derived from different precursors by the hydrothermal method. Reaction conditions such as temperature, time and alkali concentration have been investigated and the product is characterized in detail by XRD, TEM and other techniques. Comparing with those from the conventional method, the hydrothermal SrTiO3 powders with a simple mode of size distribution appear to have smaller particle size and a lower agglomeration, and can give the dense sintering bodies at lower temperature.