Preparation and Magnetic Properties of NiFe2O4 Plate Nanoparticles
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Date
2021
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Abstract
The aim of this study was to investigate nickel ferrite (NiFe2O4) plate nanoparticles synthesized by the co-precipitation method. The effects of parameters such as solution pH and Fe3+/Ni2+ mole ratio of nickel ferrite nanoparticles were analyzed. The nanoparticles synthesized by the co-precipitation method were calcined at 650°C. The samples were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDAX), and Fourier-transform infrared spectroscopy (FTIR). The remanent magnetization, saturated magnetism, and coercivity properties of the samples were measured with a vibrating sample magnetometer (VSM). In a synthesis process with Fe3+/Ni2+ = 1 mole ratio, a Ni1.43Fe1.7O4 compound was formed where NiFe2O4 was expected to form. NiFe2O4 plate nanoparticles with 108-nm particle size were successfully synthesized using the Fe3+/Ni2+ = 2 mole ratio. © 2021, The Minerals, Metals & Materials Society.
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Coprecipitation , Energy dispersive X ray analysis , Ferrite , Fourier transform infrared spectroscopy , Iron compounds , Nanomagnetics , Nanoparticles , Nickel , Particle size , Particle size analysis , Scanning electron microscopy , Synthesis (chemical) , X ray diffraction analysis , Coprecipitation method , Effect of parameters , Fe 3+ , Mole ratio , Nickel ferrite , Nickel ferrite nanoparticle , Property , Remanent magnetization , Solution pH , Synthesised , Nickel compounds