Phase- and size-controlled synthesis of hexagonal and cubic CoO nanocrystals.

作者： Won Seok Seo , Jae Ha Shim , Sang Jun Oh , Eun Kwang Lee , Nam Hwi Hur

关键词: Crystal 、 Hydrothermal synthesis 、 Oleylamine 、 Crystallography 、 Chemistry 、 Thermal decomposition 、 Nanocrystal 、 Crystal growth 、 Phase (matter) 、 Nanoparticle

摘要: Highly crystalline, phase- and size-controlled CoO nanocrystals of hexagonal cubic phases have been prepared by thermal decomposition Co(acac)3 in oleylamine under an inert atmosphere. Kinetic thermodynamic control for the precursor formation leads to two different seeds at higher temperatures. The crystal size both can be easily manipulated changing concentration reaction temperature.