Size dependent magnetic and capacitive performance of MnFe2O4 magnetic nanoparticles

Thirumurugan Arun; T. Kavin Kumar; R. Udayabhaskar; Mauricio J. Morel; G. Rajesh; R. V. Mangalaraja; Ali Akbari-Fakhrabadi

doi:10.1016/j.matlet.2020.128240

Size dependent magnetic and capacitive performance of MnFe₂O₄ magnetic nanoparticles

Thirumurugan Arun, T. Kavin Kumar, R. Udayabhaskar, Mauricio J. Morel, G. Rajesh, R. V. Mangalaraja, Ali Akbari-Fakhrabadi

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

MnFe₂O₄ magnetic nanoparticles (MNPs) are prepared by simple chemical oxidation method with optimized experimental conditions. The particle size is reduced by introducing the ferric ions as a size reducing agent during the chemical reaction. The saturation magnetization of the MnFe₂O₄ MNPs are tuned between 45 and 67 emu/g. The shift in the particle size distribution is confirmed from the transmission electron microscope (TEM) micrograph. The highest specific capacitance of 415 F/g is achieved for the smaller sized MnFe₂O₄ MNPs prepared with higher concentration of ferric ions. The results suggest that the ferric ions could be used for the size control of ferrites through chemical oxidation method and the sized reduced MnFe₂O₄ MNPs could be a suitable choice for the electrochemical supercapacitor applications.

Original language	English
Article number	128240
Journal	Materials Letters
Volume	276
DOIs	https://doi.org/10.1016/j.matlet.2020.128240
State	Published - 1 Oct 2020
Externally published	Yes

Keywords

Energy storage and conversion
Magnetic materials
Nanocrystalline materials
Nanoparticles

Access to Document

10.1016/j.matlet.2020.128240

Cite this

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title = "Size dependent magnetic and capacitive performance of MnFe2O4 magnetic nanoparticles",

abstract = "MnFe2O4 magnetic nanoparticles (MNPs) are prepared by simple chemical oxidation method with optimized experimental conditions. The particle size is reduced by introducing the ferric ions as a size reducing agent during the chemical reaction. The saturation magnetization of the MnFe2O4 MNPs are tuned between 45 and 67 emu/g. The shift in the particle size distribution is confirmed from the transmission electron microscope (TEM) micrograph. The highest specific capacitance of 415 F/g is achieved for the smaller sized MnFe2O4 MNPs prepared with higher concentration of ferric ions. The results suggest that the ferric ions could be used for the size control of ferrites through chemical oxidation method and the sized reduced MnFe2O4 MNPs could be a suitable choice for the electrochemical supercapacitor applications.",

keywords = "Energy storage and conversion, Magnetic materials, Nanocrystalline materials, Nanoparticles",

author = "Thirumurugan Arun and {Kavin Kumar}, T. and R. Udayabhaskar and Morel, {Mauricio J.} and G. Rajesh and Mangalaraja, {R. V.} and Ali Akbari-Fakhrabadi",

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AU - Arun, Thirumurugan

AU - Kavin Kumar, T.

AU - Udayabhaskar, R.

AU - Morel, Mauricio J.

AU - Rajesh, G.

AU - Mangalaraja, R. V.

AU - Akbari-Fakhrabadi, Ali

PY - 2020/10/1

Y1 - 2020/10/1

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AB - MnFe2O4 magnetic nanoparticles (MNPs) are prepared by simple chemical oxidation method with optimized experimental conditions. The particle size is reduced by introducing the ferric ions as a size reducing agent during the chemical reaction. The saturation magnetization of the MnFe2O4 MNPs are tuned between 45 and 67 emu/g. The shift in the particle size distribution is confirmed from the transmission electron microscope (TEM) micrograph. The highest specific capacitance of 415 F/g is achieved for the smaller sized MnFe2O4 MNPs prepared with higher concentration of ferric ions. The results suggest that the ferric ions could be used for the size control of ferrites through chemical oxidation method and the sized reduced MnFe2O4 MNPs could be a suitable choice for the electrochemical supercapacitor applications.

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