Phase- and size-controlled synthesis of hexagonal and cubic CoO nanocrystals.
Highly crystalline, phase- and size-controlled CoO nanocrystals of hexagonal and cubic phases have been prepared by thermal decomposition of Co(acac)3 in oleylamine under an inert atmosphere. Kinetic and thermodynamic control for the precursor formation leads to two different seeds of hexagonal and cubic phases at higher temperatures. The crystal size of both CoO phases can be easily manipulated by changing the precursor concentration and reaction temperature.
Seo
Won Seok
WS
National Research Laboratory, Department of Chemistry and School of Molecular Science (BK 21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea.
Shim
Jae Ha
JH
Oh
Sang Jun
SJ
Lee
Eun Kwang
EK
Hur
Nam Hwi
NH
Park
Joon T
JT