Nanocrystals of XTiO3 (X = Ba, Sr, Ni, BaxTi1−x) materials obtained through a rapid one-step methodology at 50 °C

•A variety of titanate-based perovskite nanocrystals were synthesized using an unified sonochemical methodology.•Nanocrystals were synthesized at a relatively low temperature of 50 °C.•Nanocrystals were free from any by-product such as XCO3 (carbonate by-products).

Titanate-based perovskite (XTiO3; Ba, Sr, Ni, Ba0.6Sr0.4) nanocrystals were synthesized through a unified sonochemical methodology based on the reaction between XCl2 and TiCl4. The effects of the preparation conditions such as ultrasonication time and ultrasonication temperature were studied. XTiO3 nanocrystals were characterized by field-emission scanning electron microscopy (FE-SEM), X-Ray diffractometry and high-resolution transmission electron microscopy techniques. XTiO3 nanocrystals were synthesized at a relatively low temperature of 50 °C while were free from any by-product such as XCO3 (carbonate by-products). Characterization of the morphological characteristics and particle size distribution of the obtained powders indicated that the powder products consist of somewhat regularly shaped and relatively spherical particles with a narrow size distribution. The method described here, is simple, rapid, cost-effective and useful for large-scale production purposes.