https://doi.org/10.1140/epjp/s13360-025-06058-w
Regular Article
Facile fabrication of NbTe2 doped with Ag via hydrothermal route for approaching the high performance toward supercapacitor applications
1
Department of Physics, Government Graduate College, 32100, Taunsa Sharif, Pakistan
2
Department of Chemistry, College of Science, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
3
Department of Chemistry, Faculty of Science, Al-Azhar University, 11884, Nasr City, Cairo, Egypt
4
Centre for Research Impact & Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, 140401, Punjab, India
Received:
4
July
2024
Accepted:
23
January
2025
Published online:
3
March
2025
Energy crisis and greenhouse effects are reaching alarming levels, the development of active materials that are both environment friendly and economically viable is essential for energy storing technologies. Currently, supercapacitors (SCs) are a best type of energy storage devices that attained significant attention from scientists. The fabrication of composites using transition metal with chalcogenides possessed high specific capacitance, structural integrity, maximum energy efficiency, low cost, higher power density and energy density. The hydrothermal route was utilized to developed niobium telluride (NbTe2) and silver-doped niobium telluride (Ag-NbTe2). The Ag-NbTe2 nanoflakes were examined through scanning electron microscopy (SEM) to identify structural morphology of NbTe2 nanoparticles incorporated inside transition metal (Ag) which demonstrated the nanoflakes morphology. The increased surface area of Ag-NbTe2 was confirmed through the BET as computed value of pristine NbTe2 was 21 cm2 g−1 and with silver doped (Ag-NbTe2) was 51 cm2 g−1. The examination on energy storing devices by using 3 M KOH electrolyte to conduct electrochemical impedance spectroscopy (EIS), galvanic charge–discharge and cyclic voltammetry experiments. Moreover, the fabricated material Ag-NbTe2 nanoflakes displayed exceptional charge–discharge cycling characteristics, with specific capacitance (Cs) 1774 F g−1 at current density (jd) 1 A g−1. By analyzing the EIS graph successfully identified the solution resistance (Rs) as 2.34 Ω with charge transfer resistance (Rct) as 0.77 Ω. Further, results of our research provide a cost-efficient, highly effective and easily expandable approach for producing nanocomposites by hydrothermal techniques. This fabricated material exhibited enhanced electrochemical performance, making them highly suitable for utilization in supercapacitors (SCs) and other energy storage devices.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
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.
