Low temperature synthesis of BaTiO3 from layered titanate nanosheet

Abstract

A H + -form lepidocrocite-like layered titanate H 1.07Ti1.73O4 was exfoliated in a n-propylamine solution to prepare a colloidal solution of the titanate nanosheet. The nanosheet colloidal solution shows a very high reactivity with Ba (OH) 2 in the formation reaction of BaTiO3. The sub-micrometer BaTiO3 sheet-like and spherical particles can be obtained by reacting the nanosheet colloidal solution with Ba(OH)2 at 80°C. This reaction provides a novel low temperature process for the preparation of BaTiO3.