Title:Unravelling the Supercapacitive Potential of Zn-Ni-Co Mixed
Transition Metal Oxide
Volume: 16
Issue: 3
Author(s): Nurul Infaza Talalah Ramli, Ab Malik Marwan Ali*, Nur Hafiz Hussin, Mohamad Fariz Mohamad Taib and Oskar Hasdinor Hassan
Affiliation:
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia
- Institute of Sciences, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia
Keywords:
mixed transition metal oxide, zinc-nickel-cobalt oxide, specific capacitance, electrochemical performance, supercapacitor, energy storage.
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.