Size Controllable Synthesis of Barium Titanate Nanoparticles by Hydrothermal Method using Supercritical Water

Title
Size Controllable Synthesis of Barium Titanate Nanoparticles by Hydrothermal Method using Supercritical Water
Authors
안기호이영호김재훈이윤우
Keywords
Supercritical Water; Barium Titanate
Issue Date
2009-10
Publisher
Supergreen2009
Abstract
In this study, barium titanate nanoparticles were synthesized by hydrothermal method using supercritical water. Ba(OH)2 and TiO2 were used as precursors, and the reactions were carried out at 400 ℃ and 300 bar. Size of synthesized particles was slightly larger than that of titanium dioxide, and the size of titanium dioxide affected the size of barium titanate particles and the purity of the product. For large TiO2 particles (100 nm), the use of only Ba(OH)2 could not lead to the formation of pure BaTiO3, while the smaller TiO2 particles (25 nm) was completely coverted to BaTiO3.
URI
http://pubs.kist.re.kr/handle/201004/36608
Appears in Collections:
KIST Publication > Conference Paper
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