Hydrogen emerges as one of the most sustainable and cost-effective technologies for large-scale clean energy production, offering a potential solution to the global energy challenge. The utilization of fossil fuels depletes substantial natural resources and produces undesirable byproducts, including CO2, contributing to the critical issue of the greenhouse effect. Employing hydrogen and oxygen as a fuel source is recognized as a promising solution for clean energy production, addressing the increasing energy demands and mitigating the impacts of climate change. Electro-catalytic water-splitting is a reliable method for generating hydrogen and oxygen on a large scale, characterized by its high purity, efficiency, and absence of pollutants. Various alloys and oxide materials are acknowledged as suitable candidates for the development of hydrogen and oxygen electrodes. Notably, certain oxides containing transition metals, such as spinel structures, demonstrate elevated electronic conductivity and substantial electrochemical activity in the hydrogen/oxygen evolution reaction (HER/OER), owing to their exceptional chemical and physical properties. Parameters like temperature, preparation method, substitution ions, and pH of the precursor solution have been identified as crucial factors in enhancing the catalytic activity of spinel ferrites. Consequently, adjusting the phase of spinel oxide samples can optimize the functioning of hydrogen evolution in the sample. Therefore, in this talk, the focus will be on the development of transition metal oxide nanoparticle-based EC as a superior electrode for future water electrolysis applications.