Issue 19, 2020
From the journal:

RSC Advances

Magnetic and structural properties of single-phase Gd3+-substituted Co–Mg ferrite nanoparticles

El. Abouzir,a   M. Elansary, ORCID logo a   M. Belaiche ORCID logo *a  and  H. Jazirib  

* Corresponding authors

a Nanomaterials and Nanotechnology Unit, E.N.S, Energy Research Centre, Faculty of Sciences, Mohammed V University, B.P. 5118 Takaddoum, Rabat, Morocco
E-mail: med.belaiche@um5.ac.ma

b Genetics and Molecular Biology, E.N.S, Mohammed V University, B.P. 5118 Takaddoum, Rabat, Morocco

Abstract

Nanocrystalline Gd3+-doped Co–Mg ferrite nanoparticles with the chemical formula Co0.7Mg0.3Fe(2−x)GdxO4 (x = 0.02) were prepared by coprecipitation for the first time. The properties of the nanoparticles were investigated by X-ray diffraction, confirming a single-phase, highly crystalline cubic spinel structure in the space group Fd[3 with combining macron]m and an average crystallite size of 54 nm. The Fourier-transform infrared spectrum showed two fundamental absorption bands in the wavenumber range of 437–748 cm−1 attributed to the stretching vibration of tetrahedral and octahedral sites in the spinel structure. Scanning electron microscopy analysis showed that the nanoparticles are different in shape and slightly agglomerated. Energy-dispersive X-ray spectroscopy demonstrated the purity of the nano-ferrite powder. Magnetic measurements revealed ferrimagnetic behavior at room and low temperatures with high coercivity and a high saturation magnetization of 95.68 emu g−1, larger than that of pure bulk cobalt ferrite (80.8 emu g−1). Only ferrite cobalt synthesized sonochemically has been reported to have a higher saturation magnetization (92.5 emu g−1).

Graphical abstract: Magnetic and structural properties of single-phase Gd3+-substituted Co–Mg ferrite nanoparticles

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Article information

DOI
https://doi.org/10.1039/D0RA01841D
Article type
Paper
Submitted
26 Feb 2020
Accepted
03 Mar 2020
First published
18 Mar 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 11244-11256

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Magnetic and structural properties of single-phase Gd3+-substituted Co–Mg ferrite nanoparticles

El. Abouzir, M. Elansary, M. Belaiche and H. Jaziri, RSC Adv., 2020, 10, 11244 DOI: 10.1039/D0RA01841D

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