With the world facing numerous climate and environmental challenges due to the use of fossil fuels, a global shift towards a net-zero policy and the adoption of environmentally friendly energy systems by 2050 is imperative. Hydrogen has emerged as a promising solution, serving as a clean and infinite fuel source with zero emissions when utilized. Green hydrogen, produced through water electrolysis, is considered the cleanest method of generating hydrogen. In this study, we synthesized catalysts modified with zinc and conducted electrochemical analyzes to enhance our understanding of their performance in the context of water electrolysis. In the present research, Linear Sweep Voltammetry (LSV), Electrochemical Surface Area (ECSA), and Electrochemical Impedance Spectroscopy (EIS) analyzes were conducted to assess the electrochemical performance of a catalyst synthesized via a hydrothermal method under conditions of elevated temperature and pressure. ZnCo2O4 showed an OER overpotential of 1.633 mV at 10 mA/cm2, and a 12% improved electrochemical surface area compared to Co3O4 was measured. Additionally, the lowest charge transfer resistance was confirmed. Based on the results above, the successful synthesis of an improved alternative catalyst has been achieved. This study contributes to the broader effort of developing efficient and sustainable technologies for green hydrogen production, a crucial step towards achieving global energy transition and environmental sustainability goals.
