4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
The Proceedings of SAIP2016 published on 24 December 2017
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Effect of different synthesis methods on structure, morphology and magnetic properties of CoFe2O4 nanoparticles

Presented by Dr. Nadir OSMAN on 5 Jul 2016 from 16:10 to 18:00
Type: Poster Presentation
Track: Track A - Division for Physics of Condensed Matter and Materials
Board #: A.351

Abstract

Spinel structure of CoFe2O4 nanoparticles was synthesized via combustion, glycol-thermal and hydrothermal methods. The structure was studied by X-ray powder diffraction. High-resolution transmission electron microscope was used to investigate the effect of the synthesis methods on the morphology of the samples. The sample produced by combustion method show largest crystallite sizes of 22.98 nm. Smallest crystallite sizes of about 6.57 nm were obtained by hydrothermal method. Iron distribution and hyperfine interaction on the tetrahedral site and octahedral site for the samples were studied using 57Fe Mössbauer measurements at room temperature. Investigation of the magnetic behavior for the samples was carried out using vibrating sample magnetometer (VSM) in external magnetic fields of up to 14 kOe. The coercive fields obtained were 1271.1 kOe, 198.15 kOe and 165.84 kOe for the samples produced by combustion, glycol-thermal and co-precipitation respectively.

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Location: Kramer Law building
Address: UCT Middle Campus Cape Town
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