A study on the formation of MnFe₂O₄ nano‐powder by coprecipitation method

Abstract

The microstructure and magnetic properties of manganese ferrite nano powder obtained from MnCl 2 .4H 2 O, (NH 4 ) 2 Fe(SO 4 ) 2 .6H 2 O, FeCl 3 .6H 2 O and NaOH by coprecipitation and aging in isothermal static conditions at temperature lower than 370 K, has been investigated by X-ray diffraction (XRD), Transmission electron micrograph (TEM) and vibrating sample magnetometer (VSM). The results reveal the influence of the temperature on the particle size distribution as well as on the structure and composition of the ferrite phase. The magnetic properties of the ferrite are also presented.

Magnetic properties and structural analysis on spinel MnFe2O4 nanoparticles prepared via non‐aqueous microwave synthesis

“…[48][49][50] MnFe 2 O 4 nanoparticles with manifold morphological characteristics can be synthesized by different methods, including ball milling, [51] solvothermal synthesis, [52] hydrothermal synthesis, [53] and co-precipitation. [40,54] Compared to many traditional wetchemical syntheses, the microwave synthesis as alternative offers high reproducibility, significantly shortened reaction times, efficient heating, and high yields. [55] In contrast to e. g. milling down solid-state synthesized materials to the desired particle size, microwave syntheses can yield relatively defectfree particles with function-tailored properties, [56] using a significantly lower energy input.…”

“…MnFe 2 O 4 nanoparticles with manifold morphological characteristics can be synthesized by different methods, including ball milling, [51] solvothermal synthesis, [52] hydrothermal synthesis, [53] and co‐precipitation [40,54] . Compared to many traditional wet‐chemical syntheses, the microwave synthesis as alternative offers high reproducibility, significantly shortened reaction times, efficient heating, and high yields [55] .…”

<strong>Organic driving agent assisted synthesis of MnFe₂O₄ nanoparticles by microwave irradiation</strong>

“…Up to now, many methods have been reported to synthesize magnetic ferrite nanomaterials such as coprecipitation [1,2], hydrothermal/solvothermal [3,4], mechanochemical [5,6], and sol-gel [7,8] methods. The usual synthesis methods need to the long time reaction and difficult reaction conditions.…”

Effect of gamma irradiation on dielectric properties of manganese zinc nanoferrites

“…Interaction of radiant energy with matter, especially γ radiation, produces defects in the materials which influences the structural, morphological, electrical and magnetic properties of ferrites [2][3]. In these materials, the change is a function of the total dose absorbed in the material.…”