期刊
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421406.2023.2272391
关键词
Lattice constant; magnetic properties; NiFe2O4; zinc substitution; ZnFe2O4
In this study, Ni1-xZnxFe2O4 nanoparticles with an average diameter of 12.5 nm were successfully synthesized using the microwave-assisted urea method. The materials exhibited high saturation magnetization and low coercive force. The size of the ferrite nanoparticles synthesized by this method was smaller compared to previous co-precipitation methods. Lower treatment temperatures also resulted in higher stoichiometry and homogeneity of the materials.
Nickel ferrite solid solutions remain one of the main materials for a whole range of applications, including microwave equipment and components, the requirements for parameters and homogeneity of materials are constantly increasing. In this work, Ni1-xZnxFe2O4 nanoparticles with an average diameter of 12.5 nm were successfully synthesized by the microwave-assisted urea method. The temperature of a single-phase product formation was 400 degree celsius, which is lower compared to more common precipitation from aqueous solution methods or solid-state route. Ni1-xZnxFe2O4 materials demonstrate high saturation magnetization and low coercive force. The magnetization changes with increasing Zn concentration and reaches the maximum at x = 0.5. Also, the increase in zinc content leads to an increase in the lattice parameters. The average size of ferrite nanoparticles synthesized by the microwave-assisted urea method is smaller compared to ferrites synthesized earlier by the co-precipitation method. Also, lower treatment temperatures provide higher stoichiometry, and homogeneity of materials while magnetization difference is negligible. These research results provide a general and effective route to synthesize other nanostructures for a variety of microwave components.
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