Phase- and size-controlled synthesis of hexagonal and cubic CoO nanocrystals.
Phase- and size-controlled synthesis of hexagonal and cubic CoO nanocrystals.
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DOI：
10.1021/ja050359t
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发表时间：
2005-04
影响因子：
15
通讯作者：
W. Seo;Jae Ha Shim;S. Oh;Eun Kwang Lee;N. Hur;Joon-Taik Park
中科院分区：
文献类型：
--
作者：
W. Seo;Jae Ha Shim;S. Oh;Eun Kwang Lee;N. Hur;Joon-Taik Park
通过Co（acac）3在油胺中的热分解反应，在惰性气氛下制备了六方和立方相的高结晶度、相和尺寸可控的CoO纳米晶。动力学和热力学控制的前体形成导致两种不同的种子的六方和立方相在较高的温度。两种CoO相的晶体尺寸可以容易地通过改变前体浓度和反应温度来操纵。
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.