Electrochemical and Morphological Analysis of Mercury Sulphide for Capacitance Behaviour
December 11, 2024 12:00 am
Electrochemical capacitors (ECs) are an important component of modern energy storage due to their fast charge-discharge kinetics, high power density, and long operating life. This work investigates the electrochemical behaviour and morphological characteristics of mercury sulfide (HgS) electrodes, using cyclic voltammetry and scanning electron microscopy for a thorough analysis. HgS was produced using a single-step hydrothermal method. X-ray diffraction revealed the presence of single-phase HgS. The W-H and S-S plots determine the crystallite size. UV-Vis spectroscopy investigation indicates absorption in both UV and visible regions, with an optical energy band gap of 0.79 eV. FESEM detected nano-polyhedral particles. EDS analysis using FESEM revealed the presence of mercury and sulfur. The Nyquist plot and cyclic voltammetry showed capacitive behavior, indicating compatibility with batteries and supercapacitors. The study thoroughly investigates HgS electrodes to identify crucial elements influencing capacitance performance, such as electrode shape, surface area, and material composition. The findings highlight HgS's potential as an effective electrode material and provide insights into its use in developing EC technology. This study contributes to the ongoing development of energy storage systems by linking fundamental electrochemical principles with comprehensive morphological characterization, paving the way for long-lasting and efficient capacitive devices.