Synthesis of spinel МgМn2О4 nanoparticles by the co-precipitation method in an ultrasonic field DOI

Yu. V. Sukhatskyi,

Martyn Sozanskyi, Mariana Shepida

et al.

Chemistry Technology and Application of Substances, Journal Year: 2024, Volume and Issue: 7(1), P. 52 - 59

Published: June 1, 2024

Nanoparticles of spinel MgMn2O4 were synthesized using the co-precipitation method in an ultrasonic field. It was established that at a calcination temperature 200 °C, all peaks on diffractogram material corresponded to with cubic lattice, pronounced crystallinity, and absence other phases. As increased, formation new phases – Mn oxides (respectively, Mn5O8 Mn2O3) recorded. The average size particles calculated from diffraction Debye-Scherrer equation equated 24.4 nm °C. An increase specific power processing reaction medium revealed natural proportion amorphous phase decrease particles.

Language: Английский

Synergistic effects of Li-based ferrite and graphene oxide in microwave absorption applications DOI

Intasab Farooq,

M.U. Islam, Muhammad Danish

et al.

Synthetic Metals, Journal Year: 2024, Volume and Issue: 307, P. 117674 - 117674

Published: June 6, 2024

Language: Английский

Citations

9
Understanding the structural, magnetic, and electrical properties of MFe2O4 (M = Mg2+, Co2+, Ni2+, Cu2+, Zn2+) nanocrystalline ferrites. A comparative study DOI
M.A. Gabal,

R.S. Al-luhaibi,

Y.M. Al Angari

et al.

Applied Physics A, Journal Year: 2025, Volume and Issue: 131(2)

Published: Jan. 17, 2025

Language: Английский

Citations

1
Synthesis of Manganese Zinc Ferrite Nanoparticles in Medical-Grade Silicone for MRI Applications DOI Open Access
Joshua A. Stoll, Dorota Lachowicz, Angelika Kmita

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(6), P. 5685 - 5685

Published: March 16, 2023

The aim of this project is to fabricate hydrogen-rich silicone doped with magnetic nanoparticles for use as a temperature change indicator in resonance imaging-guided (MRIg) thermal ablations. To avoid clustering, the particles mixed MnZn ferrite were synthesized directly medical-grade polymer solution. characterized by transmission electron microscopy, powder X-ray diffraction, soft absorption spectroscopy, vibrating sample magnetometry, temperature-dependent nuclear relaxometry (20 °C 60 °C, at 3.0 T), and imaging (at T). Synthesized size 4.4 nm ± 2.1 exhibited superparamagnetic behavior. Bulk material showed good shape stability within study's range. Embedded did not influence spin-lattice relaxation, but they shorten longer component spin-spin relaxation times silicone's protons. However, these protons an extremely high r2* relaxivity (above 1200 L s-1 mmol-1) due presence particles, moderate decrease magnetization temperature. With increased r2*, ferro-silicone can be potentially used high-temperature MRIg ablations (40 °C).

Language: Английский

Citations

11
Structural and magnetic analysis of Cd-Zn spinel ferrite nanoparticles DOI
Mohamed H. Badr,

N.V. Kudrevatykh,

M A Hassan

et al.

Physica Scripta, Journal Year: 2023, Volume and Issue: 98(2), P. 025823 - 025823

Published: Jan. 17, 2023

Abstract Sol-gel auto-combustion synthesis technique was employed to synthesize Cd-Zn ferrite nanoparticles with composition Zn 1-x Cd x Fe 2 O 4 , where 0.0 ≤ 1.0. The physical properties of prepared samples were inspected by using x-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and vibration sample magnetometer (VSM) techniques. XRD analysis confirmed the formation spinel nanoferrites an increase in experimental lattice constant from 8.37 Å 8.74 for zinc cadmium samples, respectively. Variation tetrahedral octahedral hopping lengths, crystallite size, microstrain dislocation density Cd-content has been investigated elucidated. SEM micrographs showed agglomeration nearly-spherical grains that increased size increase. FTIR existence characteristic stretching vibrations metal ion oxygen complex range 429–558 cm −1 . VSM measurements revealed a tuning coercivity higher values decrease saturation magnetization as increased. calculated cations distribution, bond angles interionic distances between at sites attribute observed weak interaction two sites.

Language: Английский

Citations

8
Monte Carlo study of magnetic behaviour of single Fe and Ni nanoparticles DOI

N. Yousefpour Novini,

Şahın Uyaver, S.H. Reza Shojaei

et al.

Molecular Simulation, Journal Year: 2024, Volume and Issue: 50(6), P. 441 - 446

Published: March 2, 2024

The exchange integral in the magnetic response of a spherical metallic iron (Fe) and nickel (Ni) nanoparticle is theoretically studied by using Monte Carlo simulations. To this end, nanoparticles model coordinates, we compute magnetization, susceptibility, specific heat, internal energy, hysteresis loop over wide range temperatures for an Fe Ni with size about 2 nm. phase transition are interpolated versus parameters, it observed that dependence on coupling parameter completely linear. Moreover, from susceptibility results samples, sharpest peak least fluctuation gives us most appropriate Curie temperature system. However, related to heat capacity also range. From energy results, can be understood increase interaction, system reaches equilibrium. coercive field remanent magnetization caused indicate superparamagnetic properties at room temperature. At obtained allow determine pave way development many applications.

Language: Английский

Citations

1
Effect of magnetic field on the lubricating performance of nano magnetorheological grease at different temperatures DOI
Jiabao Pan, Rui Li, Ao Wang

et al.

Industrial Lubrication and Tribology, Journal Year: 2023, Volume and Issue: 75(9), P. 1045 - 1053

Published: Sept. 25, 2023

Purpose The adverse effects of temperature on the lubricating properties nano magnetorheological grease are reduced by applying a magnetic field. Design/methodology/approach Nano was prepared via thermal water bath with stirring. were investigated at different temperatures. Then lubricity under effect thermomagnetic coupling. Findings As rises, coefficient friction lubrication gradually increases, surface wear increases and performance decreases. Compared grease, has decreased enhanced action field Originality/value A method using to reduce is established, thereby providing new ideas for design wide range conditions.

Language: Английский

Citations

3
Sonochemical Synthesis of MnFe2O4 Spinel Nanoparticles DOI

Yu. Sukhatskiy,

Mariana Shepida, S. А. Korniy

et al.

Materials Science, Journal Year: 2023, Volume and Issue: 59(4), P. 487 - 493

Published: Dec. 1, 2023

Language: Английский

Citations

2
Degradation of diazine dye safranin T using potassium persulfate activated by ultrasonic treatment and MnFe2O4 spinel nanoparticles DOI Open Access

Yuriy Sukhatskiy,

Tetiana Dmytrenko,

Mariana Shepida

et al.

Voprosy Khimii i Khimicheskoi Tekhnologii, Journal Year: 2024, Volume and Issue: 1, P. 99 - 108

Published: Feb. 1, 2024

An advanced oxidation process of ultrasound/MnFe2O4/K2S2O8 was developed for the degradation diazine dye safranin T, according to which potassium persulfate co-activated by ultrasonic (US) cavitation and MnFe2O4 spinel nanoparticles synthesized via co-precipitation in field. A synthesis product annealed at a temperature 4000C, with an average size crystallites about 7 nm, used as catalyst decomposition persulfate. Based on results experimental studies influence various factors degree rate constant T oxidative degradation, well considering energy resource-saving principles, rational conditions were determined follows: reaction medium 600C, molar ratio T:K2S2O8=1:100, loading 0.1 g/l, specific power treatment 51.0 W/l. It established that under such equal 98.3%, 1.510–3 s–1. The changes UV-Vis spectra namely decrease intensity absorption bands, both visible (at wavelength 520 nm) UV 275 regions spectrum, confirmed T. In addition, absence appearance new peaks spectrum indicated mineralization dye.

Language: Английский

Citations

0
Synthesis of spinel МgМn2О4 nanoparticles by the co-precipitation method in an ultrasonic field DOI

Yu. V. Sukhatskyi,

Martyn Sozanskyi, Mariana Shepida

et al.

Chemistry Technology and Application of Substances, Journal Year: 2024, Volume and Issue: 7(1), P. 52 - 59

Published: June 1, 2024

Nanoparticles of spinel MgMn2O4 were synthesized using the co-precipitation method in an ultrasonic field. It was established that at a calcination temperature 200 °C, all peaks on diffractogram material corresponded to with cubic lattice, pronounced crystallinity, and absence other phases. As increased, formation new phases – Mn oxides (respectively, Mn5O8 Mn2O3) recorded. The average size particles calculated from diffraction Debye-Scherrer equation equated 24.4 nm °C. An increase specific power processing reaction medium revealed natural proportion amorphous phase decrease particles.

Language: Английский

Citations

0