Enhanced Electrochemical Performance of Cobalt-Substituted  Zinc Ferrite for High-Stability Supercapacitors

S. Anbukaruppuchamy; P. Balamurugan; P. Vijayamathubalan; Janet Dayanithi; J. Vidya

doi:10.14233/ajchem.2025.33918

Issue

Vol. 37 No. 7 (2025): Vol 37 Issue 7, 2025

Issue Published : 30 June 2025

This work is licensed under a Creative Commons Attribution 4.0 International License.

Enhanced Electrochemical Performance of Cobalt-Substituted Zinc Ferrite for High-Stability Supercapacitors

https://doi.org/10.14233/ajchem.2025.33918

S. Anbukaruppuchamy

Department of Physics, Government Arts College, Nandanam, Chennai-600035, India

https://orcid.org/0009-0002-4356-0860

P. Balamurugan

Department of Physics, Government Arts College, Nandanam, Chennai-600035, India

https://orcid.org/0000-0002-5129-6898

P. Vijayamathubalan

Department of Physics, Government Arts College, Nandanam, Chennai-600035, India

https://orcid.org/0009-0000-7351-1811

Janet Dayanithi

Department of Chemistry, School of Basic Science, VISTAS, Pallavaram, Chennai-600117, India

https://orcid.org/0009-0003-0385-2209

J. Vidya

Department of Physics, Arignar Anna Government Arts College, Namakkal-637002, India

https://orcid.org/0000-0001-6000-401X

Corresponding Author(s) : S. Anbukaruppuchamy

loveaksamy@gmail.com

Asian Journal of Chemistry, Vol. 37 No. 7 (2025): Vol 37 Issue 7, 2025
Article Published : 30 June 2025

Abstract

Cobalt-substituted zinc ferrite (Co_xZn_1-xFe₂O₄) nanoparticles were synthesized and studied for their structural, morphological and electrochemical properties. The XRD results confirmed that the prepared samples possess cubic spinel structure with crystallite size decreased from 31.45 nm to 26.13 nm upon cobalt substitution. FTIR and Raman spectroscopic studies validated spinel phase formation with metal-oxygen vibrations in tetrahedral and octahedral sites. The FESEM study showed agglomerated morphology and the EDX result confirmed stoichiometry. Electrochemical tests (CV, GCD, EIS, cyclic stability test) revealed improved charge storage and conductivity caused by cobalt content. Co_0.5Zn_0.5Fe₂O₄ achieved 306.2 F/g at 1 A/g and 96% capacitance retention after 4000 cycles at 10 A/g, indicating its potential as a high-performance supercapacitor electrode.

Keywords

Supercapacitor Cubic spinel structure Electrochemical energy storage Charge transfer kinetics

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Anbukaruppuchamy, S.; Balamurugan, P.; Vijayamathubalan, P.; Dayanithi, J.; Vidya, J. Enhanced Electrochemical Performance of Cobalt-Substituted Zinc Ferrite for High-Stability Supercapacitors. ajc 2025, 37, 1690-1696.

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