Ternary mixed nickel cobalt iron oxide nanorods as a high-performance asymmetric supercapacitor electrode
Peer reviewed, Journal article
Accepted version
Åpne
Permanent lenke
https://hdl.handle.net/11250/2650053Utgivelsesdato
2019Metadata
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- Institutt for materialteknologi [2562]
- Publikasjoner fra CRIStin - NTNU [38672]
Sammendrag
By utilizing a facile microwave process, ternary nickel cobalt iron oxide (NiCoFeO4) nanorods were synthesized. A comprehensive investigation of morphological, structural and surface chemistry of the nanorods has been carried out. The electrochemical investigation of NiCoFeO4 nanorods shows superior supercapacitive characteristics achieving a maximum specific capacitance (Csp) of 1263 F/g at a current density of 1 A/g and cyclic stability retaining 97.2% of capacitance after 2000 cycles. Asymmetric supercapacitor based on NiCoFeO4 nanorods displays a high-power density of 10 kW/kg, energy density of 9.8 W h/kg, coulombic efficiency of 95.5% and capacitance retention of 94% after 4000 cycles. The asymmetric supercapacitor is featuring an outstanding potential for practical supercapacitors due to high surface area nanorod morphology and mixed transition metal oxide synergetic effect.