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Morphological changes of $BaCO_3$ microcrystal with the synthetic conditions  

Choi, Eun-Jee (Department of Chemistry, Dankook University)
Huh, Young-Duk (Department of Chemistry, Dankook University)
Abstract
$BaCO_3$ crystals with various morphology were prepared using precipitation, hydrothermal and ligand-assisted methods. An irregular structure of $BaCO_3$ microparticle was obtained by simple precipitation method from $Ba(NO_3)_2$ and $Na_2CO_3$ in aqueous solution. Hexagonal pyramidals of $BaCO_3$ were synthesized using a hydrothermal method between $Ba(NO_3)_2$ and urea. Hexagonal rods of $BaCO_3$ were also synthesized using the ligand-assisted hydrothermal method. The aspect ratio of $BaCO_3$ hexagonal rods was increased with the concentration of ligand.
Keywords
$BaCO_3$; Morphology; Hydrothermal method; Ligand-assisted method;
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