Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors

M.firat Baran; Erdal Ertaş; Abdulkadir Levent

doi:10.31015/2025.4.13

Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors

Abstract

The production of highly efficient and cost-effective electrode materials is critical for the performance of energy storage systems, and therefore nanocomposite materials are ideal candidates for supercapacitor applications. In this study, the synthesis, characterization and electrochemical behavior of SBAC@ZnO nanocomposite obtained by modifying activated carbon (AC) synthesized by activating Sweet Basil (SB) plant with ZnO were investigated in detail. The structural and morphological properties of the SBAC nanocomposite were analyzed using UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) techniques. The results indicate that the ZnO particles exhibit a homogeneous distribution on the SBAC surface and support the functionalization of organic functional groups derived from SB. Electrochemical performance evaluations were conducted using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS) techniques. In CV analyses, the specific capacitance values of the SBAC and SBAC@ZnO electrodes in Na₂SO₄ electrolyte were obtained as 102.56 F/g and 229.96 F/g, respectively. In GCD experiments, the SBAC@ZnO electrode achieved a substantial Csp value of 426.66 F/g at a current density of 0.1 A/g. The EIS study revealed equivalent series resistance (ESR) values of 48.52 Ω for SBAC and 29.32 Ω for SBAC@ZnO, with charge transfer resistances (Rct) measured at 4.20 Ω and 3.28 Ω, respectively. The results demonstrate that ZnO doping diminishes internal resistance at the electrode-electrolyte interface, enhances ion transport, and optimizes electrochemical kinetics. Bode phase analyses indicated phase angles of 54.46° and 67.65° for SBAC and SBAC@ZnO electrodes, respectively, showing that ZnO doping enhances capacitive behavior. In the low-frequency region, the SBAC electrode reached a capacitance of 161.20 F/g, while the SBAC@ZnO reached a capacitance of 241.61 F/g. The findings indicate that ZnO doping significantly improves electrochemical performance, making the SBAC@ZnO nanocomposite a promising electrode material for supercapacitor applications.

Keywords

Plant-Based Nanomaterial, SBAC@ZnO nanocomposite, Supercapacitors, Galvanostatic charge-discharge, Cyclic voltammetry

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Details

Primary Language

English

Subjects

Transgenesis

Journal Section

Research Article

Authors

M.firat Baran ^*
0000-0001-8133-6670
Türkiye

Erdal Ertaş
0000-0002-0325-1257
Türkiye

Abdulkadir Levent
0000-0001-5792-419X
Türkiye

Early Pub Date

December 11, 2025

Publication Date

December 26, 2025

Submission Date

October 15, 2025

Acceptance Date

November 30, 2025

Published in Issue

Year 2025 Volume: 9 Number: 4

DOI

https://doi.org/10.31015/2025.4.13

IZ

https://izlik.org/JA23UR36PH

APA

Baran, M., Ertaş, E., & Levent, A. (2025). Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors. International Journal of Agriculture Environment and Food Sciences, 9(4), 1110-1120. https://doi.org/10.31015/2025.4.13

AMA

1.Baran M, Ertaş E, Levent A. Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors. int. j. agric. environ. food sci. 2025;9(4):1110-1120. doi:10.31015/2025.4.13

Chicago

Baran, M.firat, Erdal Ertaş, and Abdulkadir Levent. 2025. “Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors”. International Journal of Agriculture Environment and Food Sciences 9 (4): 1110-20. https://doi.org/10.31015/2025.4.13.

EndNote

Baran M, Ertaş E, Levent A (December 1, 2025) Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors. International Journal of Agriculture Environment and Food Sciences 9 4 1110–1120.

IEEE

[1]M. Baran, E. Ertaş, and A. Levent, “Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors”, int. j. agric. environ. food sci., vol. 9, no. 4, pp. 1110–1120, Dec. 2025, doi: 10.31015/2025.4.13.

ISNAD

Baran, M.firat - Ertaş, Erdal - Levent, Abdulkadir. “Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors”. International Journal of Agriculture Environment and Food Sciences 9/4 (December 1, 2025): 1110-1120. https://doi.org/10.31015/2025.4.13.

JAMA

1.Baran M, Ertaş E, Levent A. Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors. int. j. agric. environ. food sci. 2025;9:1110–1120.

MLA

Baran, M.firat, et al. “Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors”. International Journal of Agriculture Environment and Food Sciences, vol. 9, no. 4, Dec. 2025, pp. 1110-2, doi:10.31015/2025.4.13.

Vancouver

1.M.firat Baran, Erdal Ertaş, Abdulkadir Levent. Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors. int. j. agric. environ. food sci. 2025 Dec. 1;9(4):1110-2. doi:10.31015/2025.4.13

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Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors

Nano ZnO-Doped Sweet Basil-Based Activated Carbon Electrodes for Supercapacitors

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