Hydrothermal synthesis of nanocrystalline BaTiO3 particles and structural characterization by high-resolution transmission electron microscopy

A study of dielectric behavior of manganese doped barium titanate–polyimide composites

“…BaTiO 3 has ABO 3 (where A is Ba 2+ and B is Ti 4+ )-type perovskite structure with A at the corners, B at the center, and the O 2− at the face centers. [8] Doped and undoped barium titanate can be prepared by various methods-solidstate reaction method, [9] hydrothermal method, [10,11] sol-gel processing, [12,13] solvothermal method, [14] chemical coprecipitation method, [15] etc. [6] To obtain better dielectric results, many researchers have doped barium titanate with different elements such as lanthanum, yttrium, nickel, iron, and manganese.…”

Morphology and atomic-scale surface structure of barium titanate nanocrystals formed at hydrothermal conditions

“…Unfortunately, until now there is no attempt made to characterize the surface structure of BT nanocrystals at atomicscale by the HRTEM technique, especially for the local interfacial structure between the core and the shell, although some papers dealing with the structural characterizations at atomic-scale are reported on the BT nanocrystals synthesized via hydrothermal method [11][12][13][14][15]. The objective of the present work is to investigate the morphology and atomic-scale surface structure of the BT nanocrystals formed at different hydrothermal conditions.…”

Hydrothermal synthesis of BaTiO3 nanoparticles using a supercritical continuous flow reaction system

“…Similarly the citrate and sol-gel methods have many steps and require a post heat treatment to induce crystallization. Among the various synthesis methods, the hydrothermal route is suitable for preparing fine and uniform powders of high purity in a single step without requiring expensive reagents [12][13][14][15][16][17][18][19]. Recently, an alternative supercritical hydrothermal process has been developed because of its advantages in terms of rapid kinetics and high supersaturation over the conventional hydrothermal method [20][21][22][23][24].…”