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Abstract <p>Ferrite nanoparticles with varying concentrations of Mn<sub><i>x</i></sub>Co<sub>1 –</sub> <sub><i>x</i></sub>Fe<sub>2</sub>O<sub>4</sub>, (where <i>x</i> = 0.5, 0.3, 0.1, and 0) were generated utilizing the sol–gel autocombustion technique at variant calcination temperatures. The nanoparticles’ morphology, and&#xa0;magnetic properties were analyzed utilizing energy-dispersive X-ray spectroscopy (XRS), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and vibrating sample magnetometer (VSM). The X-ray diffraction showed that it is possible to obtain ferrite at the auto-combustion temperature. The particle size range identified by FE-SEM ranges between 35 and 99 nm. Moreover, the results obtained from the VSM show that CoFe<sub>2</sub>O<sub>4</sub> nanoparticles exhibit ferromagnetic behavior, where the ratio of saturation magnetization (<i>M</i><sub>s</sub>)/remanence magnetization (<i>M</i><sub>r</sub>), equal 0.30146 at&#xa0;1200°C.</p>

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Impact of Mn+2 Doping on the Structure, Morphology, and Magnetic Properties of Cobalt Ferrite Nanoparticles Synthesized Using Sol–Gel Auto-combustion Technique

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Saja B. Mohammed,
  • Tahseen H. Mubarak,
  • Yahiea Alnaiemy

摘要

Abstract

Ferrite nanoparticles with varying concentrations of MnxCo1 – xFe2O4, (where x = 0.5, 0.3, 0.1, and 0) were generated utilizing the sol–gel autocombustion technique at variant calcination temperatures. The nanoparticles’ morphology, and magnetic properties were analyzed utilizing energy-dispersive X-ray spectroscopy (XRS), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and vibrating sample magnetometer (VSM). The X-ray diffraction showed that it is possible to obtain ferrite at the auto-combustion temperature. The particle size range identified by FE-SEM ranges between 35 and 99 nm. Moreover, the results obtained from the VSM show that CoFe2O4 nanoparticles exhibit ferromagnetic behavior, where the ratio of saturation magnetization (Ms)/remanence magnetization (Mr), equal 0.30146 at 1200°C.