The article highlights various research studies and reviews that focus on the development of electrocatalysts for sustainable hydrogen production. Researchers are working on designing efficient electrocatalysts for oxygen- and hydrogen-involving energy conversion reactions. These studies delve into the stability and activity of different catalysts used in processes like water electrolysis. Advancements such as acid-stable manganese oxides and cobalt spinel oxides have shown enhanced stability in liquid electrolytes, making them promising candidates for sustainable hydrogen production. Additionally, review articles in the field discuss degradation mechanisms and mitigation strategies in proton exchange membrane (PEM) electrolyzers. These reviews analyze critical gaps in polymer electrolyte water electrolysis development and explore the impact of factors like flow regime and intermittent operation on the performance and lifetime of electrolyzer cells. Overall, the research in this area aims to contribute to the scaling-up of water splitting catalysts and promote the use of renewable energy sources for hydrogen production.