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Orange peel-derived activated carbon as an electrode material for supercapacitor application using nickel mesh

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Abstract

In the current work, orange peels were employed to prepare the activated carbon by the carbonization method at low temperature (AC-OP) using the nickel mesh for the first time. Through the use of several depiction techniques, the essential characteristics of the novel AC-OP electrode have been examined. The electrochemical behaviour of the AC-OP's electrode has been assessed. By using the scanning electron microscope, the prepared AC-OP powder was found to exhibit honeycomb shape. The energy gap (Eg) is discovered to be 2.06 eV. The electrochemical components of AC-OP powder, which is the primary active ingredient, deposited on nickel mesh act as a current collector. Electrochemical impedance spectroscopic and cyclic voltammetric methods are used to analyse nickel mesh electrodes. The hydrogen diffusion co-efficient of AC-OP electrode is found to be 9.30 × 10–5 cm2 s−1. The developed AC-OP electrode's exceptional capacitive potential was confirmed from the galvanostatic charge–discharge tests, favourable for the fabrication of supercapacitors. These cutting-edge effects might also be quantified for the utility of power storage employing reasonably cost carbon resources in many applications for energy storage.

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The datasets used and analysed during the current study are available from the corresponding author on reasonable request.

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Professor TNR conceptualized and designed the project. Mr. RVK conducted the experiments, interpreted the data and prepared the first draft. Dr. HCAM reviewed and edited the final manuscript.

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Correspondence to B. V. Raghu Vamshi Krishna or H. C. Ananda Murthy.

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Raghu Vamshi Krishna, B.V., Nageswara Rao, T. & Murthy, H.C.A. Orange peel-derived activated carbon as an electrode material for supercapacitor application using nickel mesh. Chem. Pap. 77, 4953–4962 (2023). https://doi.org/10.1007/s11696-023-02833-0

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  • DOI: https://doi.org/10.1007/s11696-023-02833-0

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