| Facile fabrication of manganese telluride and graphene oxide nanostructure for robust energy storage systems |
| Syed Imran Abbas Shah1, Ammar Saleem1, Sana Munawar2, Komal Zaman Khan1, Sameh M. Osman3, Muhammad Fahad Ehsan4, Sumaira Manzoor1 |
1Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
2Institute of Physics, Khwaja Fareed University of Engineering and Information Technology, Abu Dhabi Road, Rahim Yar Khan, 64200, Pakistan
3Chemistry Department, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
4Department of Civil and Environmental Engineering, Northeastern University, Boston, 02115 MA, USA |
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Received: August 21, 2023; Revised: November 25, 2023 Accepted: December 17, 2023. Published online: February 23, 2024. |
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| ABSTRACT |
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This study presents hydrothermal synthesis of manganese telluride supported on graphene oxide (MnTe/GO) nanostructure, showcasing its exceptional potential as a material for supercapacitor applications. The thorough characterization of synthesized materials encompasses a variety of methodologies, notably X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer Emmet-Teller (BET) analysis, which collectively elucidate their structural, morphological, and textural attributes. Electrochemical assessments, employing established techniques such as cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), electrochemical impedance spectroscopy (EIS), and determination of electrochemical active surface area (ECSA), validate the exceptional performance of the synthesized materials. The nanocomposite MnTe/GO exhibits a heightened specific capacity (Csp) of 2203 F g-1 at a current density of 2 A g-1, demonstrating an impressive retention rate of 99% over 2000 cycles, thus highlighting its superior stability. These enhanced electrochemical capabilities are ascribed to the effective incorporation of MnTe into GO sheets, facilitating electron transfer and augmenting the active electrochemical surface area. Consequently, the electroactive nanocomposites, featuring metal telluride nanostructures, emerge as promising candidates for next-generation, high-performance supercapacitor applications. |
| Key words:
MnTe/GO · Hydrothermal method · Electrocatalyst · Pseudo-capacitor · Energy storage devices |
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