Chemical Synthesis and Characterization of Nickel Powder

Chakraborty, M (2011) Chemical Synthesis and Characterization of Nickel Powder. Metallurgical and materials transactions B-Process metallurgy and materials processing science, 42 (2). pp. 380-384.

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The synthesis of magnetic Ni nanoparticles is being investigated by the reduction of NiO nanoparticles in the presence of hydrogen gas. In this study, nanocrystalline NiO particles have been synthesized by a homogenous carbonate precipitation method employing nickel electrolyte (NiSO4) as the source of nickel and ammonium hydrogen carbonate as the precipitating agent. Nickel electrolyte (NiSO4) was obtained after processing of sea nodules by the roasting-ammonia leaching-solvent extraction method. The physicochemical characterization of NiO and Ni particles, i.e., bright field image by transmission electron microscope, X-ray diffraction, scanning electron microscope, energy dispersive X-ray analysis, Fourier transform-infrared (FT-IR) study, and magnetic measurements by vibration sample magnetometer (VSM) are studied. The particles are observed to be superparamagnetic. DOI: 10.1007/s11663-010-9459-0 (C) The Minerals, Metals & Materials Society and ASM International 2010

Item Type:Article
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Uncontrolled Keywords:Magnetic-Properties; Iron Nanoparticles; Hydrogen Reduction; Ni; Particles; Mechanism; Alumina; Oxides
Divisions:Metal Extraction and Forming
ID Code:2994
Deposited By:Dr. A K Sahu
Deposited On:14 Jun 2011 16:14
Last Modified:24 Oct 2013 13:58
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