https://doi.org/10.1140/epjp/s13360-023-04001-5
Regular Article
Synthesis of Co3O4/NiO nanospherical composites as electrode material for high-performance supercapacitors
1
Department of Physics, College of Science, Jazan University, 45142, Jazan, Saudi Arabia
2
Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia
3
Department of Physics, College of Science, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
4
Department of Physics, Al-Qunfudah University College, Umm Al-Qura University, 24382, Mecca, Saudi Arabia
5
Division of Science and Technology, Department of Physics, University of Education Lahore, Lahore, Pakistan
6
Department of Physics, University of Agriculture, Faisalabad, Pakistan
Received:
4
February
2023
Accepted:
18
April
2023
Published online:
6
May
2023
Nanospheres of Co3O4, NiO, and their composites (Co3O4/NiO) are prepared by the co-precipitation method and utilized as supercapacitor electrode materials. The material’s chemical composition was identified using EDX, and the crystallite sizes of Co3O4, NiO, and their nanocomposite determined using X-ray diffraction were obtained to be 25.36 nm, 21.80 nm, and 23.58 nm, respectively. FTIR was utilized to check the functional groups of the prepared material, and scanning electron microscopy revealed that there were many interconnected nanospheres with spherical morphology in Co3O4, NiO, and their nanocomposite. To investigate the electrochemical properties, cyclic voltammetry was utilized to find the specific capacitance of nanocomposites (Co3O4/NiO), which was 2769.2 F/g at 5 mV/s, and galvanostatic charging/discharging was utilized to measure the excellent power density of 3629.76 W/kg at current density 7 A/g and the excellent energy density of 131.96 Wh/kg at 1 A/g current density of the nanocomposite Co3O4/NiO. In comparison with the studies, all of these findings are exceptional and may yield useful results for the production of high energy density supercapacitors.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
