The Influence of Various Divalent Metal Ions (Mn2+, Co2+, and Cu2+) Substitution on the Structural and Magnetic Properties of Nickel–Zinc Spinel Ferrite

Mazen, S. A.; Abu-Elsaad, N.I.; Nawara, A.S.

doi:10.1134/s106378342007015x

Cited by 12 publications

(6 citation statements)

References 26 publications

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“…), and also the decrease of density is described by the fact that the density of Mg is 1.74 g/cm 3 which is lower than the Ni density which is equal to 8.91 g/cm 3 [ 35 ]. The porosity (

) of the samples was computed [ 36 ] using Equation (8):

…”

Section: Resultsmentioning

confidence: 99%

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Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

et al. 2022

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Using the auto combustion flash method, Ni1−x+2Mgx+2Fe2+3O4 (x = 0, 0.2, 0.6, 0.8 and 1) nano-ferrites were synthesized. All samples were thermally treated at 973 K for 3 h. The structural analysis for the synthesized samples was performed using XRD, high-resolution transmission electron microscopy (HRTEM), and FTIR. Scanning electron microscopy (SEM) was undertaken to explore the surface morphology of all the samples. The thermal stability of these samples was investigated using thermogravimetric analysis (TGA). XRD data show the presence of a single spinel phase for all the prepared samples. The intensity of the principal peak of the spinel phase decreases as Mg content increases, showing that Mg delays crystallinity. The Mg content raised the average grain size (D) from 0.084 μm to 0.1365 μm. TGA shows two stages of weight loss variation. The vibrating sample magnetometer (VSM) measurement shows that magnetic parameters, such as initial permeability (μi) and saturation magnetization (Ms), decay with rising Mg content. The permeability and magnetic anisotropy at different frequencies and temperatures were studied to show the samples’ magnetic behavior and determine the Curie temperature (TC), which depends on the internal structure. The electrical resistivity behavior shows the semi-conductivity trend of the samples. Finally, the dielectric constant increases sharply at high temperatures, explained by the increased mobility of charge carriers, and decreases with increasing frequency.

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“…), and also the decrease of density is described by the fact that the density of Mg is 1.74 g/cm 3 which is lower than the Ni density which is equal to 8.91 g/cm 3 [ 35 ]. The porosity (

) of the samples was computed [ 36 ] using Equation (8):

…”

Section: Resultsmentioning

confidence: 99%

“…The factors that affect permeability are saturation magnetization ( M s ), crystallite size ( D ), and magnetic anisotropy constant ( K ). The initial permeability can be computed [ 36 ] according to the relation:

…”

Section: Resultsmentioning

confidence: 99%

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

et al. 2022

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“…Ni and Mn have similar ionic radii, making Ni a suitable substitute for Mn in the crystal lattice. 37,38 The charge neutrality of the material is maintained by the presence of cation vacancies, which can accommodate the substitution of Ni ions without significantly altering the overall charge balance. 18 The comprehensive analysis of the structural differences between V m -NMO and NMO was investigated by X-ray absorption fine structure analysis.…”

Section: Resultsmentioning

confidence: 99%

Highly stable manganese oxide cathode material enabled by Grotthuss topochemistry for aqueous zinc ion batteries

Zhao,

Li,

Chutia

et al. 2024

Energy Environ. Sci.

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“…Different preparation techniques, such as the hydrothermal, wet chemical, auto combustion, and spray drying methods, have been studied for the fabrication of nanoscale mixed ferrite particles [5][6][7][8][9][10]. The Deraz group, as a group specialized in the preparation and characterization of nano magnetic materials with various applications, sought to reach one pot preparation methods that are environmentally friendly and less expensive, especially by not relying on high temperatures that may be necessary to prepare different ferrites [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Zinc Substitution on the Microstructural and Magnetic Characteristics of Cubic Symmetry Nickel Ferrite System

2023

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The preparation of ZnxNi1−xFe2O4 (x = 0 and 0.3) nanoparticles using glycine-mediated combustion route was successfully completed depending on the zwitterion and combustion characteristics of glycine. Using a variety of methods, including XRD, FTIR, SEM/EDX, and TEM, the investigated ferrites were characterized. XRD and FTIR analyses confirm that Zn0.3Ni0.7Fe2O4 and NiFe2O4 nanoparticles crystallize in the cubic symmetry in the space group Fd3m. An increase in the lattice parameters and a subsequent decrease in crystallite size were caused by the process of replacing Ni ions with Zn ions. In accordance with Waldron’s hypothesis, FTIR spectra demonstrate that the ferrites have a spinel-type structure as they are produced. The substitution process by Zn led to different changes in the half band widths with subsequent in splitting in the absorption band around 400 cm−1. The examined ferrites’ cation distribution showed that Zn2+ and Ni2+ ions favored the tetrahedral (A) and octahedral (B) sites, respectively, while Fe3+ ions occupied both A- and B-sites, providing mixed spinel ferrite. TEM analysis indicates the formation of spinel nanocrystalline particles with low agglomerations. The particle size of the as-synthesized ferrites did not exceed 16 nm. By applying the VSM approach at room temperature, the magnetic characteristics of the ferrites under investigation were established. The magnetization of Zn0.3Ni0.7Fe2O4 nanoparticles was found to be higher than that of NiFe2O4 nanoparticles according to the magnetic data. Increasing the magnetization and the experimental magnetic moment of Zn0.3Ni0.7Fe2O4 were accompanied by a decreasing of its coercivity. The net magnetization is oriented along different high symmetry directions. On the other hand, the anisotropy of the nickel ferrite increases by substituting Ni with a Zn ion.

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The Influence of Various Divalent Metal Ions (Mn2+, Co2+, and Cu2+) Substitution on the Structural and Magnetic Properties of Nickel–Zinc Spinel Ferrite

Cited by 12 publications

References 26 publications

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

Structure, Morphology and Electrical/Magnetic Properties of Ni-Mg Nano-Ferrites from a New Perspective

Highly stable manganese oxide cathode material enabled by Grotthuss topochemistry for aqueous zinc ion batteries

Effects of Zinc Substitution on the Microstructural and Magnetic Characteristics of Cubic Symmetry Nickel Ferrite System

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