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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 24, Number 1
BKCSDE 24(1)
January 20, 2003 

 
Title
Synthesis and Surface Derivatization of Processible Co Nanoparticles
Author
Jin-Kyu Lee, Sung Moon Choi
Keywords
Co nanoparticle, Nanorod, Surface modification, Reverse micelle
Abstract
Co nanoparticles were prepared by the reverse micelle technique (NaBH4 reduction of cobalt chloride in a reversed micelle solution of didodecyldimethylammoniumbromide (DDAB)/toluene). The size and the shape of Co nanoparticles could be easily controlled by changing the water contents and micelle concentrations, and the solubility of Co nanoparticles was systematically tuned by choosing appropriate surface capping organic ligand molecules. Furthermore, a novel nanofabrication process was clearly demonstrated, which generated oxide over-coated Co nanorods from Co nanoparticles in organic solution by slow oxidation with an external magnetic field.
Page
32 - 36
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