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Substantial performance of copper sulfide nanotubes at high current densities for energy storage applications
University of the Punjab, Pakistan.
University of the Punjab, Pakistan.
University of the Punjab, Pakistan.
University of the Punjab, Pakistan.
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2024 (English)In: Journal of Energy Storage, ISSN 2352-152X, E-ISSN 2352-1538, Vol. 85, article id 111055Article in journal (Refereed) Published
Abstract [en]

This study presents the direct growth of CuS nanotubes (NTs) on nickel foam using a facile solution synthesis route. The structural, elemental and morphological analyses of CuS NTs grown Ni foam were conducted through X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscope, and field emission scanning electron microscope. The electrochemical performance of the prepared electrodes was comprehensively characterized by cyclic voltammetry (CV), galvanostatic charge discharge and electrochemical impedance spectroscopy. The CuS NTs grown electrodes delivered a specific capacitance of 1539 Fg−1 at 1 mVs−1 and 1365 Fg−1 at 5 Ag−1, demonstrating a remarkable rate capability of 66 % at an extremely high current density of 25 Ag−1. Notably, the CuS NTs electrode demonstrated good cyclic stability, as evidenced by a charge retention of 75.5 % after 3000 cycles at a high current density of 20 Ag−1. The charge storage mechanism was predominantly diffusion controlled, accomplished by analyzing CV data. Overall, this work evinces that the as-synthesized CuS NTs hold a significant promise as electrode materials for high-performance electrochemical energy storage applications.

Place, publisher, year, edition, pages
Elsevier, 2024. Vol. 85, article id 111055
Keywords [en]
Supercapacitor, CuS, Solution synthesis, Electrochemical performance, High rate capability
National Category
Energy Engineering
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
URN: urn:nbn:se:lnu:diva-128662DOI: 10.1016/j.est.2024.111055ISI: 001209787400001Scopus ID: 2-s2.0-85186506834OAI: oai:DiVA.org:lnu-128662DiVA, id: diva2:1849680
Available from: 2024-04-08 Created: 2024-04-08 Last updated: 2025-02-04Bibliographically approved

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Ali, Sharafat

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CiteExportLink to record
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Citation style
  • apa
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