Fabrication of a novel chromium-iron oxide (Cr sub(2)Fe sub(6)O sub(12 )) nanoparticles by thermal treatment method

In this research,a novel chromium-iron oxide (Cr sub(2)Fe sub(6)O sub(12 )) nanoparticle with rhombohedral symmetry was prepared by a simple thermal treatment method.Heat treatment was conducted using an electric cylinder furnace in an air atmosphere at temperatures between 773 and 923 K, where the...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2015-09, Vol.389, p.113-119
Main Authors: Naseri, Mahmoud Goodarz, Kamari, Halimah Mohamed, Dehzangi, Arash, Kamalianfar, Ahmad, Saion, Elias B
Format: Article
Language:English
Subjects:
Crystallites
Cylinders
Electron spin
Field emission
Nanoparticles
Oxides
Scanning electron microscopy
X-rays
Online Access:Get full text
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Summary:In this research,a novel chromium-iron oxide (Cr sub(2)Fe sub(6)O sub(12 )) nanoparticle with rhombohedral symmetry was prepared by a simple thermal treatment method.Heat treatment was conducted using an electric cylinder furnace in an air atmosphere at temperatures between 773 and 923 K, where the produced chromium-ironoxide nanoparticles had different crystallite sizes ranging from 9 to 20 nm. The products were well characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscope (FESEM), X-ray analysis (EDXA), and Fourier transform infrared spectroscopy (FT-IR). The samples demonstrated a magnetic behavior with unpaired electron spins, which was confirmed by using vibrating sample magnetometer (VSM) and electron paramagnetic resonance (EPR) spectroscopy.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2015.04.013