Hydrogen is a promising clean energy source for the future, offering a clean-burning alternative to fossil fuels. However, the challenge lies in producing hydrogen affordably and sustainably. Most hydrogen today comes from fossil fuels, emitting large amounts of CO2. Water electrolysis, the cleaner alternative, is costly due to high electricity requirements. To tackle this, researchers at the University of Adelaide and COE-CSI have developed innovative electrolysis systems using urea from urine to produce hydrogen more efficiently. These systems reduce electricity use by 20-27% compared to traditional methods and eliminate toxic by-products. By using actual urine as a source, the researchers aim for a sustainable and low-cost approach to hydrogen production. They have addressed challenges such as chloride corrosion by developing new mechanisms, paving the way for scalable and environmentally friendly systems. The next steps involve creating cost-effective catalysts for wider implementation. This breakthrough research, published in top scientific journals, signifies a significant advancement in the transition towards sustainable hydrogen production and decarbonization.