Synthesis of Novel NiFe2O4 Nanospheres for High Performance Pseudocapacitor Applications
- Authors: Ghasemi A.1, Kheirmand M.1, Heli H.2
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Affiliations:
- Department of Chemistry, School of Basic Sciences
- Nanomedicine and Nanobiology Research Center
- Issue: Vol 55, No 3 (2019)
- Pages: 206-214
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/191949
- DOI: https://doi.org/10.1134/S1023193519020022
- ID: 191949
Cite item
Abstract
Synthesis of monodispersed NiFe2O4 nanospheres by a simple method was reported. Structure, morphology and characterization of the nanospheres were performed using field emission scanning electron microscopy, X-ray diffraction and FTIR spectroscopy. Electrochemical properties of the prepared nano-spheres were studied in order to realize their suitability and susceptibility as an electrode material for supercapacitor applications. NiFe2O4 nanospheres showed a high specific capacitance of 122 F g−1 and a great specific energy of 16.9 Wh kg−1 at a high current density of 8.0 A g−1. The maximum specific capacity of the nanospheres was even more, which can reach 137.2 F g−1 at 4 A g−1 of current density. The results showed an excellent long-term cycling stability for the NiFe2O4 nanospheres-based electrodes. The capacitance did not decrease, compared to the initial value during 100 galvanostatic charge-discharge cycles.
About the authors
A. Ghasemi
Department of Chemistry, School of Basic Sciences
Email: kheirmand@yu.ac.ir
Iran, Islamic Republic of, Yasouj
M. Kheirmand
Department of Chemistry, School of Basic Sciences
Author for correspondence.
Email: kheirmand@yu.ac.ir
Iran, Islamic Republic of, Yasouj
H. Heli
Nanomedicine and Nanobiology Research Center
Email: kheirmand@yu.ac.ir
Iran, Islamic Republic of, Shiraz