Ibn Sina Journal of Medical Science, Health & Pharmacy

Abstract

ABSTRACT
INTRODUCTION: The growing demand for portable power sources such as electric vehicles and hybrid electric vehicles has inspired much interest in developing advanced energy storage devices for practical applications. Among these energy storage systems, supercapacitors have attracted extensive attention because of their higher power density and cycling stability than batteries, as well as their higher energy density than conventional electrolytic capacitors.
METHODS: Among the metal oxides, Zn−Ni−Co ternary oxide (ZNC) has attracted particular interest recently because of its superior electrochemical properties. In the present work, we explored porous ZNC / carbon nanotubes (CNTs) (ZNC/CNTs) in the form of hexagonal nameplates.
RESULTS: This material has got various advantages, such as high surface area, effective electrolyte/electrode interaction, superior electron/ion transportation, and promising strain accommodation. Moreover, the electrochemical characterizations showed that the as-synthesized composite electrode demonstrated a synergistic effect between the CNTs and the porous ZNC, resulting in favourable pseudocapacitive behaviour, including good specific capacitance, high rate performance, and excellent cycling stability. These advantages, along with the simple processing technique, make this ZNC-CNTs composite a potential candidate for pseudocapacitive applications. In particular, this
CONCLUSION: CNT wrapped multi-cationic metal oxide with a homogeneous structure exhibited a high specific capacitance of 2360 F g−1 at a current density of 2 A g-1 with remarkable cycling stability, 96% capacitance retention after 10000 cycles of charge-discharge. The CNTs wrapped around the ZNC ensure a short ion diffusion distance, percolating electron conducting pathways, and stable structural integrity. Such a feasible architecture could also provide good synergism between the CNTs and the ZNC, resulting in better electrochemical performance. As a result, this nanocomposite displays impressive overall electrochemical performance. This facile and feasible method could be beneficial for preparing similar materials that require high electronic conductivity for energy storage in medical applications.

References

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Article history_en

Received : Jan 05, 2025

Revised : Jan 09, 2025

Accepted : Mar 11, 2025

Authors Affiliations_en

Laith Alzboon a,1,*, Saddam Almajalib,2

Ethics declarations_en

Acknowledgment	None
Author Contribution	All authors contributed equally to the main contributor to this paper. All authors read and approved the final paper.
Conflicts of Interest	“The authors declare no conflict of interest.”
Funding	“This research received no external funding”