Electrochemical supremacy of cobalt-doped nickel oxide and its supercapacitor applications with its mesoporous morphology

Mala, Nazir Ahmad and Dar, Mohd Arif and Sinha, Gudipati Neeraja and et al, . (2022) Electrochemical supremacy of cobalt-doped nickel oxide and its supercapacitor applications with its mesoporous morphology. Journal of Materials Science: Materials in Electronics, 33 (14). pp. 11582-11590. ISSN 0957-4522

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In this study, we report on the synthesis of bare and cobalt (Co)-doped nickel oxide nanoparticles (NPs) using a chemical precipitation method. X-ray diffraction (XRD) confirms that the crystallite size decreases after doping cobalt using the Scherrer formula. Fourier transform infrared (FTIR) spectrometer depicts the metal–oxygen bond (M–O) in the compounds. Scanning electron microscopy and Transmission electron microscopy revealed a mesoporous spherical-like morphology. XPS spectrum identifies the oxidation states of the constituent ions existing in the sample. The supercapacitor application of nanoparticles was examined via cyclic voltammetry (CV). The electrochemical performance verified the pseudocapacitive nature of the materials and the highest specific capacitance (717.11 F/g) for BNC3 was recorded, which is higher than values previously reported NiO materials. The weak crystalline nickel–cobalt is easy to form porous structure, which can significantly increase capacitance, also maintaining good rate performance. Cobalt-doped sample shows promising supercapacitor electrode material and ensures that NiO:Co could act as an enhanced working electrode for the upcoming generation of a supercapacitor. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

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Item Type: Article
Additional Information: Nazir Ahmad Mala is thankful to the Head, Department of Physics, Annamalai University, for providing the necessary facilities to carry out this work. Author K. M. Batoo is thankful to Researcher Supporting Project Number (RSP-2021/148), at King Saud University, Riyadh, Saudi Arabia for their financial support.
Uncontrolled Keywords: Chemical precipitation method; Electrochemicals; Fourier transform infrared spectrometer; Mesoporous; Metal-oxygen bonds; Nickel oxide nanoparticle; Scherrer's formula; Supercapacitor application; X- ray diffractions; XPS spectrum
Subjects: Physics
Divisions: Department of Chemistry
Department of Physics
Depositing User: . LibTrainee 2021
Date Deposited: 28 Jun 2022 07:16
Last Modified: 29 Jun 2022 10:20
URI: http://raiith.iith.ac.in/id/eprint/9422
Publisher URL: http://doi.org/10.1007/s10854-022-08130-y
OA policy: https://v2.sherpa.ac.uk/id/publication/14299
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