Design of MnS@MWCNT Nanocomposite Cathode for Ultra-high Efficient Supercapacitors

Abstract

The aim of this study was to investigate the usability of MnS (Manganese Sulfide) nanoparticles in supercapacitor applications. MnS nanoparticles were synthesized using the microwave synthesis method. Additionally, a multi-walled carbon nanotube (MWCNT) was incorporated into the MnS structure to prepare MnS@%10MWCNT. The microwave synthesis method was chosen due to its fast, energy-efficient, and easily controllable synthesis process. The size and morphological properties of the synthesized nanoparticles were determined using analytical techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results demonstrated that the microwave-synthesized MnS nanoparticles possessed a crystalline structure and a homogeneous distribution. The incorporation of MWCNT was confirmed through SEM images and XRD analysis. Subsequently, the usability of the synthesized MnS and MnS@%10MWCNT nanoparticles in supercapacitor applications was evaluated. The supercapacitor performance was examined using electrochemical characterization methods such as cyclic voltammetry and continuous charge-discharge tests. The results of the study revealed that MnS nanoparticles exhibited high capacitance and fast charge-discharge characteristics in supercapacitor devices. Furthermore, it was observed that the capacitance and stability increased with the incorporation of MWCNT. This study demonstrates the potential of MnS and MnS@%10MWCNT nanoparticles in energy storage. The microwave-synthesized MnS and MnS@%10MWCNT nanoparticles highlight their potential in supercapacitor applications. These findings represent an important step towards the expansion of nanomaterials' utilization in energy storage and the development of more efficient supercapacitor devices.