Scientists in Bengaluru have developed a novel alloy-based catalyst, PtPdCoNiMn, for efficient green hydrogen production through water electrolysis. This innovative approach utilizes high-entropy alloys to minimize the reliance on costly materials like platinum, offering enhanced efficiency and stability for hydrogen generation. By optimizing the deposition processes, the researchers successfully created the HEA catalyst, which showed minimal energy loss, high durability, and long-term stability. The catalyst's effectiveness was attributed to the optimal binding of reaction intermediates on its surface, outperforming commercial catalysts for hydrogen production. With seven times less platinum usage than traditional catalysts and superior efficiency, the developed HEA has the potential to revolutionize the clean energy sector. The successful performance of the catalyst in practical settings, such as alkaline seawater, further validates its stability and efficiency. Funded by India's Anusandhan National Research Foundation, this breakthrough signifies a significant step towards affordable and sustainable hydrogen production, benefiting various industries and renewable energy technologies.