Nano Archive

Investigation of the Influence of Organometallic Precursors on the Formation of Cobalt Nanoparticles

Silva, Rohini. M. de and Palshin, Vadim and Fronczek, Frank. R. and Hormes, Josef and Kumar, Challa. S. S. R. (2007) Investigation of the Influence of Organometallic Precursors on the Formation of Cobalt Nanoparticles. JOURNAL OF PHYSICAL CHEMISTRY C, 111 (28). pp. 10320-10328. ISSN 1932-7447

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp070499k

Abstract

An investigation of the influence of organometallic precursors on the formation of cobalt nanoparticles is presented. The cobalt nanoparticles were obtained by decomposing two different organometallic cobalt complexes, [(Co2(μ-HCCH)(CO)6] and [Co2(CO)8], under identical experimental conditions. Time-dependent FT-IR analysis revealed different decomposition routes, rates, and reaction intermediates leading to the formation of cobalt nanoparticles. Spectroscopic data in addition to X-ray crystallography confirmed the structures of reaction intermediates from [(Co2(μ-HCCH)(CO)6]. The crystal structure, particle size, size distribution, and magnetic properties of the cobalt nanoparticles from the two precursors were analyzed using synchrotron radiation based X-ray absorption spectroscopy (XAS), transmission electron microscopy (TEM), and superconducting quantum interference device (SQUID) magnetometry, respectively, and showed significant differences.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7153
Deposited By:JNCASR
Deposited On:28 Oct 2009 05:22
Last Modified:28 Oct 2009 05:22

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