Development of Boron-Doped Nickel Zinc Oxide Electrodes for Efficient Energy Storage in Asymmetric Supercapacitors

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Paramasivam, Kiruthika and Selvaraj, Yogapriya and Franklin, Manik Clinton and Manickam, Sornalatha and Sivalingam Nallathambi, Karthick and Hemalatha, K. V. (2025) Development of Boron-Doped Nickel Zinc Oxide Electrodes for Efficient Energy Storage in Asymmetric Supercapacitors. Industrial and Engineering Chemistry Research, 64 (34). 16660 - 16674. ISSN 15205045; 08885885

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Abstract

The Ni<inf>0</inf>.<inf>6</inf>Zn<inf>0</inf>.<inf>4</inf>O/ZnO (NZO) and three boron-doped composites (BNZO-1, BNZO-2, and BNZO-3) were synthesized via a hydrothermal method at 160 °C for 8 h. X-ray diffraction (XRD) confirmed the presence of Ni<inf>0</inf>.<inf>6</inf>Zn<inf>0</inf>.<inf>4</inf>O, ZnO, and successful boron doping in the crystal structure. Raman spectroscopy identified Ni�O and Zn�O bonds in all NZO composites. Field emission scanning electron microscopy (FESEM) revealed flake-like and rod-like morphologies for Ni<inf>0</inf>.<inf>6</inf>Zn<inf>0</inf>.<inf>4</inf>O/ZnO and boron-doped Ni<inf>0</inf>.<inf>6</inf>Zn<inf>0</inf>.<inf>4</inf>O/ZnO, respectively. Among the BNZO composites, BNZO-2 demonstrated the highest electrochemical performance, with a specific capacitance of 718 F g<sup>�1</sup>at a current density of 1 A g<sup>�1</sup>. The asymmetric device constructed with g-C<inf>3</inf>N<inf>4</inf>as the negative electrode and BNZO-2 as the positive electrode (g-C<inf>3</inf>N<inf>4</inf>//BNZO-2) achieved a specific capacitance of 40 F g<sup>�1</sup>at a current density of 1 A g<sup>�1</sup>. Additionally, the device exhibited outstanding long-term stability, maintaining a substantial proportion of its capacitance after 4000 charge�discharge cycles. It also demonstrated high Coulombic efficiency, highlighting its potential for energy storage applications. © 2025 Elsevier B.V., All rights reserved.

Item Type: Article
Additional Information: Cited by: 0
Uncontrolled Keywords: Boron compounds; Crystal structure; Doping (additives); Electric discharges; Electrochemical electrodes; Energy storage; Nickel; Nickel oxide; Scanning electron microscopy; Supercapacitor; X ray diffraction; Zinc oxide; 'current; Asymmetric supercapacitor; Boron-doped; Energy; Hydrothermal methods; Oxide electrodes; Specific capacitance; Synthesised; X- ray diffractions; ZnO; Capacitance; II-VI semiconductors
Subjects: Material Science > Electronic, Optical and Magnetic Materials
Divisions: Medicine > Vinayaka Mission's Kirupananda Variyar Medical College and Hospital, Salem > Medicine
Depositing User: Unnamed user with email techsupport@mosys.org
Last Modified: 14 Oct 2025 18:03
URI: https://vmuir.mosys.org/id/eprint/77

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