Structural, magnetic, elastic, and dielectric properties of Mn0.3−xCdxCu0.2Zn0.5Fe2O4 nanoparticles

Beyranvand, Morteza; Gholizadeh, Ahmad

doi:10.1007/s10854-020-03073-8

Cited by 45 publications

(21 citation statements)

References 48 publications

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“…The Miller indices (hkl) of the spinel phase are labeled on the diffraction peaks in Figure 1, which corresponds to the (220), (311), ( 222), (400), ( 422), ( 511), (440) planes. Structural analysis of samples x 0.00, 0.05, 0.10, 0.15, 0.20, using X'pert package indicates the formation of a pure cubic spinel structure with Fd 3 m space group, which is in agreement with JCPDS standard cards numbered 47-2,399 (Beyranvand and Gholizadeh, 2020;Gholizadeh and Beyranvand, 2020). However, this analysis for samples with x 0.25, 0.30 indicates the presence of CdO impurity phase in addition to spinel phase diffraction peaks as shown in Figure 1.…”

Section: Structural Featuressupporting

confidence: 74%

“…The magnetic parameters of the studied ferrites can be obtained from these curves. The According to law of approach to saturation (LAS), the magnetization of ferromagnetic nanoparticles at high magnetic fields follows the following formula (Gholizadeh and Jafari, 2017;Beyranvand and Gholizadeh, 2020;Gholizadeh and Beyranvand, 2020).…”

Section: Magnetic Measurementmentioning

confidence: 99%

“…Because the ionic radius of Ba +2 is larger than the other divalent cations in the A and B sites, it is expected that Ba +2 will sit more in the B site. Also, studies on Mn 0.3x Cd x Cu 0.2 Zn 0.5 Fe 3 O 4 nanoparticles showed that Mn +2 and Fe +3 ions can occupy both the A and B sites (Beyranvand and Gholizadeh, 2020). Since the ionic radius of Cd +2 is greater than the other divalent cations in the A and B sites, it is expected that cadmium ions will occupy the B site.…”

Section: Introductionmentioning

confidence: 99%

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Cadmium Substitution Effect on Microstructure and Magnetic Properties of Mg-Cu-Zn Ferrites

2022

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The microstructure, optical, and magnetic properties of CdxMg0.3-xCu0.2Zn0.5Fe2O4 ferrites prepared by the citrate auto-combustion method were investigated. The samples were analyzed by X-ray diffraction, scanning electron microscopy, UV-Vis spectroscopy, https://soh.iums.ac.ir/uploads/uv-vis_-_2.pptx X-ray energy-dispersive spectroscopy, Fourier-transform infrared spectroscopy, and vibrating sample magnetometer. Rietveld refinement of XRD patterns shows a single-phase cubic structure (space group Fd3¯m) for the samples with x up to 0.20, while the impurity phase of CdO is observed in the samples with x = 0.25, 0.30. As the substitution content increases, the presence of non-magnetic Cd2+ ions in the octahedral site and the migration of Fe3+ions from the octahedral site to the tetrahedral site decreases the saturation magnetization of the samples. Comparison of the bandgap energy of the samples shows an increasing trend with Cd substitution for x up to 0.20 and then decreases, which can be interpreted in terms of changes in the electronic structure of the samples. Improvement in dielectric properties of the samples with increase of Cd2+ content for x up to 0.20 may be attributed to easier transfer and electron exchange between Fe3+and M2+ ions.

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Section: Structural Featuressupporting

confidence: 74%

Section: Magnetic Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cadmium Substitution Effect on Microstructure and Magnetic Properties of Mg-Cu-Zn Ferrites

2022

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“…Recently, it was reported that the longitudinal and shear wave velocities of some spinel ferrites can be calculated using Fourier-transform infrared spectroscopy data. [15][16][17][18] Ultrasonic attenuation is the decay rate of the ultrasonic wave as it propagates through a material. In fact, attenuation of the ultrasonic waves is a versatile tool for studying internal structure and other inherent properties of solids.…”

Section: Introductionmentioning

confidence: 99%

Elastic and Attenuation Studies of Some Rare Earth Substituted Multiferroic Bismuth Ferrites

Sagar

Kumar

Reddy³

2021

Physica Status Solidi (b)

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A series of rare earth substituted bismuth ferrites are prepared without any detectable impurity phase, by the solid‐state reaction method. The structural characterization of the samples is conducted using X‐ray diffraction (XRD) and bulk density studies. Later, the ultrasonic longitudinal (Vl) and shear wave (Vs) velocities are measured by the pulse transmission technique and using these values, the elastic moduli are calculated. As the materials are porous, zero porous elastic moduli have been computed using Hasselmann and Fulrath model. It is observed that the elastic moduli of samples are found to increase continuously with decreasing of ionic radii of the substituted element and the observed behavior is explained qualitatively. Finally, the attenuation coefficient values of all the samples are also calculated and are found to increase with decreasing of ionic radii of the rare earth substituted ion.

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“…Structural parameters, crystallite size (D), average particle size (D FE-SEM ) and specific surface area (SSA) for the MgMnO SEM ) for the studied manganites was calculated using fitting the particle size distribution with the log-normal distribution function as follows(Beyranvand and Gholizadeh 2020;Irandoust and Gholizadeh 2020): …”

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confidence: 99%

Comparing Catalytic Activity of MgMnO3 and SrMnO3 Nanocatalyst for Synthesis of Polyhydroquinoline and New Derivatives via Hantzsch Reaction

Soleimani

Salehi

Gholizadeh

2020

Iran J Sci Technol Trans Sci

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Spinel-type oxide MgMnO 3 and perovskite-type oxide SrMnO 3 have been synthesized by two-step procedures comprising the hydrothermal and solid-state methods. The as-prepared catalysts were characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis and the morphologies of the synthesized materials were figured out by field emission scanning electron microscopy. The catalytic performance of synthesized materials were investigated by synthesizing the polyhydroquinolines, which was used Design-Expert software and response surface methodology (central composite design) for optimization of reaction efficiently. The comparison study illustrates that MgMnO 3 has better catalytic performance than SrMnO 3 and optimized condition for the synthesis of polyhydroquinoline (which is produced by the reaction of ethyl acetoacetate, benzaldehyde, dimedone and ammonium acetate) was found to be 8 mg of MgMnO 3 as the catalyst, 33 min for the reaction time and 100°C for the reaction temperature. This condition was used for the synthesis of other polyhydroquinoline derivatives.

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Structural, magnetic, elastic, and dielectric properties of Mn0.3−xCdxCu0.2Zn0.5Fe2O4 nanoparticles

Cited by 45 publications

References 48 publications

Cadmium Substitution Effect on Microstructure and Magnetic Properties of Mg-Cu-Zn Ferrites

Cadmium Substitution Effect on Microstructure and Magnetic Properties of Mg-Cu-Zn Ferrites

Elastic and Attenuation Studies of Some Rare Earth Substituted Multiferroic Bismuth Ferrites

Comparing Catalytic Activity of MgMnO3 and SrMnO3 Nanocatalyst for Synthesis of Polyhydroquinoline and New Derivatives via Hantzsch Reaction

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