Synthesis of 2D plate-like barium dititanate particle by molten salt method

Plate-like titanium dioxide(anatase) particles were prepared by in situ topotactic transformation reaction with potassium lithium titanium oxide as the template.Barium dititanate platelike particles were synthesized in a mixed sodium chloride and potassium chloride molten salt at 840 ℃ for 5 h with barium carbonate and the plate-like titanium dioxide as precursors.As the dissolution rate of titanium dioxide is much lower than that of barium carbonate in the sodium chloride and potassium chloride molten salts,the plate-like titanium dioxide particles react as templates.The obtained barium dititanate particles retain the plate-like morphology of the titanium dioxide precursors,and are 20-50 μm in length,10-20 μm in width,and about 5 μm in thickness.