title: A novel thermal reduction method towards the synthesis and growth of two unlike morphologies of nickel nanostructures.
abstract: A facile method is described for synthesizing quasi-cotton fiber and spherical nickel nanostructures via a thermal reduction of Ni(acac)2 (acac = acetylacetonate) in N,N-dimethylformamide (DMF) and in the presence and absence of sodium thiosulfate, respectively. XPS analysis revealed the existence of Ni(2+) and SO4(2-) ions on the surface of nickel nanostructures obtained in the presence of anhydrous sodium thiosulfate. Magnetic measurements of this sample resulted in lower values of saturation magnetization (2.5 emu g(-1)) and remanent magnetization (0.6 emu g(-1)) and higher value of coercivity (206 Oe), compared to nickel nanostructure in the absence of sodium thiosulfate. The effects of the temperature, type of reactant and mole ratio of S2O3(2-) : Ni(2+) on the phase structure obtained products were demonstrated.
authors: Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran. dehghani@kashanu.ac.ir.
authors: Raziyeh
authors: R
authors: Akbarzadeh
authors: Hossein
authors: H
authors: Dehghani