Synthesis and Characterization of Superparamagnetic NiFe2O4 Nanoparticles

Abstract:

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The superparamagnetic NiFe2O4 nanoparticles were synthesized using a hydrothermal technology through P123 sphere micelles as ‘nanoreactor’ in this work. Their morphologies, structures, surface properties and magnetism were characterized by FE-SEM, XRD, FTIR, and VSM, respectively. The nickel ferrite samples are nearly spherical and homogeneous nanoparticles with average size range of about 50-120 nm. They possess superparamagnetism at room temperature and higher saturation magnetization. X-ray diffraction (XRD) pattern confirms that the samples belong to the cubic crystal system with an inverse-spinel structure. Fourier transform infrared (FTIR) absorption spectrum indicates that the NiFe2O4 nanoparticles are stabilized by the P123 adsorbed on the surface of nanoparticles.

Info:

Periodical:

Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang

Pages:

1325-1328

DOI:

10.4028/www.scientific.net/MSF.663-665.1325

Citation:

D. H. Sun et al., "Synthesis and Characterization of Superparamagnetic NiFe2O4 Nanoparticles", Materials Science Forum, Vols. 663-665, pp. 1325-1328, 2011

Online since:

November 2010

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$35.00

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