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http://dx.doi.org/10.5012/bkcs.2003.24.1.032

Synthesis and Surface Derivatization of Processible Co Nanoparticles  

Lee, Jin-Kyu (School of Chemistry and Molecular Engineering, Seoul National University)
Choi, Sung-Moon (School of Chemistry and Molecular Engineering, Seoul National University)
Publication Information
Bulletin of the Korean Chemical Society / v.24, no.1, 2003 , pp. 32-36 More about this Journal
Abstract
Co nanoparticles were prepared by the reverse micelle technique (NaBH₄reduction 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.
Keywords
Co nanoparticle; Nanorod; Surface modification; Reverse micelle;
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