Synthesis of monodisperse cobalt nanoparticles and their magnetic properties
by Fatemeh Davar, Masoud Salavati-Niasari
International Journal of Nanoparticles (IJNP), Vol. 2, No. 1/2/3/4/5/6, 2009

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.

Online publication date: Wed, 30-Sep-2009

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