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Microwave-Assisted Synthesis of NiO Nanoparticles

Jena, Anirudha and Shivashankar, SA (2008) Microwave-Assisted Synthesis of NiO Nanoparticles. In: International Workshop on Mesoscopic, Nanoscopic, and Macroscopic Materials, JAN 02-04, 2008, Bhubaneswar.

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Abstract

NiO has been synthesized by microwave-induced chemical synthesis route using metalorganic complex of nickel in a domestic-type microwave oven (2.45 GHz). A novel metalorganic complex of nickel, viz., a beta-ketoester of nickel, synthesized and characterized as apart of this work, was employed as the precursor material. We varied the experimental parameters, such as the choice of solvent and microwave power, to obtain nanoparticles of NiO. The NiO nanoparticles were characterized by XRD, SEM, and TEM. The particle size of the NiO was found to vary from 7-40 nm. The magnetic behavior of the nanoparticles of NiO was examined with a vibrating sample magnetometer, revealing that as the particle size diminishes, the magnetic ordering in NiO changes, leading to a small, measurable coercivity.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to American Institute of Physics.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 25 Mar 2010 07:21
Last Modified: 25 Mar 2010 07:21
URI: http://eprints.iisc.ernet.in/id/eprint/26513

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