Synthesis of SnTiO₃ Nanoparticles Using Supercritical Fluids

Abstract

First-principles calculations were conducted to study the possibility of the formation of SnTiO₃. Nanocluster models were used, and BaTiO₃ and SnTiO₃ were studied. SnTiO₃ was stabilized with Sn rich surface similar to the BaTiO₃. Also, SnTiO₃ has smaller surface energy than that of BaTiO₃, suggesting the possibility of the formation of nanoparticles of SnTiO3 and stabilization of the unstable structure with nanometer-size. As a result of nanoparticle synthesis of BaTiO₃, Ba deficient structure was elucidated. Under the condition, the synthesis of Sn-Ti composite oxide was studied.

Graphical Abstract

Structure of A-site (Sn) surface rich SnTiO₃ cluster.