Authors: Fatemeh Davar, Masoud Salavati-Niasari
Addresses: Institute of Nano Science and Nano Technology, Department of Chemistry, Faculty of Science, University of Kashan, Kashan, P.O. Box. 87317-51167, I. R. Iran. ' Institute of Nano Science and Nano Technology, Department of Chemistry, Faculty of Science, University of Kashan, Kashan, P.O. Box. 87317-51167, I. R. Iran
Abstract: Monodisperse Co3O4 nanoparticles are synthesised via a thermal decomposition method in the presence of triphenylphosphine and oleylamine using a new precursor [Bis(salicylidiminato)cobalt(II) ]. The products were characterised by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transformed infrared (FT–IR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The hysteresis loops of the obtained samples reveal the ferromagnetic behaviours the enhanced coercivity (Hc) and decreased saturation magnetisation (Ms) in contrast to their respective bulk materials.
Keywords: Co3O4 nanoparticles; synthesis; monodisperse nanoparticles; cobalt nanoparticles; magnetic properties.
International Journal of Nanoparticles, 2009 Vol.2 No.1/2/3/4/5/6, pp.276-281
Published online: 30 Sep 2009 *Full-text access for editors Access for subscribers Purchase this article Comment on this article