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...

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Published inJournal of the American Chemical Society Vol. 127; no. 17; pp. 6188 - 6189
Main Authors Seo, Won Seok, Shim, Jae Ha, Oh, Sang Jun, Lee, Eun Kwang, Hur, Nam Hwi, Park, Joon T
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 04.05.2005
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Nanotubes
Physics
Crystal growth
Transition elements Complexes
Crystalline phase
Transmission electron microscopy
Cobalt oxides
Nanostructures
Crystal morphology
Nanostructured materials
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Summary: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.
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ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0002-7863
1520-5126
DOI:10.1021/ja050359t