Abstract
Objective: A promising Zn-Ni-Co mixed transition metal oxide was successfully synthesized by means of the sol-gel route and its super capacitive behavior was studied.
Methods: The structural, morphology, and functional groups were deduced via XRD, SEM, EDX, and FTIR analysis. The super capacitive performance of the hybrid and ternary mixed transition metal oxides was executed through a three-electrode system, in a 2M KOH electrolyte.
Results: The specific capacitance of Zn-Ni-Co O was reckoned to be 415 Fg-1 at 50 mVs-1, thrice as much as the specific capacitance of ZnCo2O4 hybrid transition metal oxide (139 Fg-1). The synergistic effects benefited from multiple metal constituents and low activation energy for electron transportation plays an important role in boosting the electrochemical performance.
Conclusion: The obtained results proved that Zn-Ni-Co O ternary composite has a promising future as an alternative for supercapacitor electrodes.
Graphical Abstract
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