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Mirsalari E, Zargar Shoushtari M, Pourreza N. Investigating the effect of morphology on the structural and magnetic properties of cobalt ferrite nanoparticle. www.ijcm.ir 2024; 32 (3) :607-614
URL: http://ijcm.ir/article-1-1884-en.html
URL: http://ijcm.ir/article-1-1884-en.html
1- Department of Physics, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2- Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2- Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Abstract: (515 Views)
This study has examined the structural, magnetic, and morphological features of nanoparticles and porous cobalt ferrite. Various techniques, such as X-ray diffraction, vibrating sample magnetometer, transmission and field emission scanning electron microscopies, X-ray energy dispersive analysis, and nitrogen adsorption-desorption, were used. The results indicate that both samples have a uniform particle size distribution and no impurity phases. The cubic spinel structure with an Fd-3m space group was observed in both samples. The average size of cobalt ferrite nanoparticles was found to be 30 nm with a specific surface area of 59.86 . On the other hand, porous cobalt ferrite nanospheres had an average size of 113 nm and a specific surface area of 77.51 . The average crystallite sizes for nanoparticles and porous cobalt ferrite nanospheres were 15 nm and 10 nm, respectively. The results indicate that the saturation magnetization increases and the coercive field decreases as the average crystallite sizes decrease.
Keywords: Cobalt ferrite, CoFe2O4, porous nanosphere, nanoparticle, nitrogen adsorption- desorption, BET
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