The article discusses the advancements in green hydrogen generation through water electrolysis without the reliance on scarce elements like iridium. Scientists have developed a novel catalyst that achieves stability in proton-exchange-membrane (PEM) water electrolysis under industrial conditions without using iridium. By leveraging water's properties, the catalyst actively involves water and its fragments in its structure, ensuring stable operation at high current densities. Intense research on non-iridium catalysts, particularly using manganese and cobalt oxide-based materials, has provided insights into modifying catalysts for efficient hydrogen generation. A delamination process involving cobalt-tungsten oxide catalysts and basic water solutions demonstrates progress towards industrial-scale green hydrogen production without iridium dependence. This innovative approach of incorporating water and its fragments into catalyst structures offers a new perspective on catalyst engineering for green hydrogen generation in PEM water electrolysis.