Synthesis of Nanometric Cubic BaTiO 3 by Using an Original Chemical Route: Freeze-Drying Method

We have succeeded to synthesize nanopowders of BaTiO 3 with the freeze-drying method, using barium acetate Ba(CH 3 CO 2 ) 2 and titanium isopropoxide Ti(Opr i ) 4 precursors. The detailed way of operating is described. Structural characterization shows unambiguously a long-range cubic order at room temperature.