Sajida and Shaheen, Irum and Shehzad, Khurram and Ahmad, Muhammad and Mendhe, Avinash C. and Rosaiah, P. and Amina, Musarat and Hussain, Iftikhar and Zoubi, Wail Al and Park, Nokeun and Aslam, Muhammad Kashif (2024) Interconnected ultra-thin nanosheets of Ni-Mn-oxide-NF nanoflake for energy storage supercapacitor. Journal of Industrial and Engineering Chemistry . ISSN 1226-086X Published Online First https://dx.doi.org/10.1016/j.jiec.2024.12.016
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Official URL: https://dx.doi.org/10.1016/j.jiec.2024.12.016
Abstract
In the quest for economic, efficient, and environmentally benign electrode materials, metal oxides are extensively investigated owing to its non-toxic and higher theoretical capacitance. Herein, we have reported the synthesis of Ni-Mn-oxide as electrode materials. The hydrothermal approach is used for the synthesis of nanoflake with ultra-thin nanosheets of Ni-Mn-oxide on NF. The sample was characterized for morphological, structural, elemental, and chemical composition by carious tools such as FE-SEM, HR-TEM, XRD, and XPS. The cyclic voltammetry measurements show excellent rate capability of Ni-Mn-oxide-NF electrode from lower to higher scan rates with distinctive pseudocapacitive features in 3 M aqueous KOH electrolyte. Based on Faraday redox reactions the enhanced specific capacitance of 1495 F g−1 and 1265 Fg−1 at 1 A g−1 and 2 A g−1 current densities were obtained by galvanostatic charge–discharge measurements. Furthermore, Ni-Mn-oxide-NF electrode reveals excellent cyclic stability till 10,000 GCD cycles with 99 % Coulombic efficiency. Consequently, the overall results of the study demonstrate the promising potential of nano-flaky Ni-Mn-oxide-NF electrode for energy storage with enhanced performance for the practical implementation of supercapacitors.
Item Type: | Article |
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Uncontrolled Keywords: | Nanoflakes; Ni-Mn oxide; Nickel foam; Supercapacitor; Tremella-shape |
Divisions: | Sabancı University Nanotechnology Research and Application Center |
Depositing User: | Irum Shaheen |
Date Deposited: | 21 Feb 2025 12:16 |
Last Modified: | 21 Feb 2025 12:16 |
URI: | https://research.sabanciuniv.edu/id/eprint/51206 |