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Tunable cationic distribution and structure-related magnetic and optical properties by Cr3+ substitution for Zn2+ in nanocrystalline Ni-Zn ferrites

Research Authors
Prof. Abdel-Aziz Abo Elfadl Abdel-Aziz
Research Abstract

We report a microwave-combustion synthesis and structure-related physical properties of Ni0.4Zn0.6−xCrxFe2O4 (0.0 ≤ x ≤ 0.6) nanocrystals in a study of effects by substitution among cations with different oxidation states, Cr3+ for Zn2+. High-quality nanocrystals with an average particle size of 26 – 33 nm and crystallite size ranged in 23 - 32 nm are revealed by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Structural properties and cationic redistribution are studied by the XRD Rietveld analysis implying different preferences of Zn2+ and Cr3+ ions to occupy the tetrahedral and octahedral sites, respectively. Further characterization for the characteristic IR absorption bands, ionic valence states, chemical compositions and morphology have been performed by employing the Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS) and electron dispersive X-ray (SEM-EDX …

Research Date
Research Department
Research Journal
Results in Physics
Research Publisher
Elsevier
Research Rank
َََQ1
Research Vol
Volume 28
Research Website
https://www.sciencedirect.com/science/article/pii/S2211379721007142
Research Year
2021
Research Pages
104622