Exploring the magnetic and supercapacitor characteristics of praseodymium-doped CoFe2O4 magnetic nanoparticles
Pure and Praseodymium (Pr)-doped CoFe 2 O 4 magnetic nanoparticles (MNPs) were prepared by chemical oxidation method with optimized experimental parameters. The structural change with increasing doping concentration of Pr was observed from the X-ray diffraction analysis. The spherical morphology of...
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Veröffentlicht in: | Journal of materials science. Materials in electronics 2024, Vol.35 (1), p.46, Article 46 |
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Hauptverfasser: | , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Pure and Praseodymium (Pr)-doped CoFe
2
O
4
magnetic nanoparticles (MNPs) were prepared by chemical oxidation method with optimized experimental parameters. The structural change with increasing doping concentration of Pr was observed from the X-ray diffraction analysis. The spherical morphology of the MNPs was confirmed from field emission scanning electron microscopy and transmission electron microscopy. Magnetic properties of the pure and Pr-doped CoFe
2
O
4
are analyzed by vibrating sample magnetometer and thermomagnetic analysis measurements. The maximum saturation magnetization of 77 emu/g was observed for pure CoFe
2
O
4
MNPs and decreasing with increasing Pr doping concentration. The curie temperature of CoFe
2
O
4
MNPs is observed around 520 °C from TMA measurements. The increase in the current from the cyclic voltammetry results with increasing doping fraction of Pr is observed. The Galvanostatic charge/discharge results revealed that the higher specific capacitance of 121 F/g was achieved for the electrode prepared with 5% of Pr-doped CoFe
2
O
4
MNPs. The cyclic stability test suggested that the 5% of Pr-doped CoFe
2
O
4
MNPs electrode can show more than 97% of capacity retention even up to 5000 cycles. The observed electrochemical characteristics of the pure and Pr-doped CoFe
2
O
4
MNPs suggested that the doping on CoFe
2
O
4
MNPs could be adopted to tune the capacitance of the electrode for supercapacitor applications. |
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ISSN: | 0957-4522 1573-482X |
DOI: | 10.1007/s10854-023-11875-9 |