This is a hmmmm invention, article from Fast Company.
“Hydrogen power has long been hampered by the lack of an inexpensive, renewable fuel. As it turns out, the solution may be right underneath us. Researchers at Ohio University have discovered that hydrogen can be produced from urine using an electrolytic process at only a fraction of the cost of generating hydrogen from water.
“Researcher Geraldine Botte and team used the fact that hydrogen molecules in urea are less tightly bound than those in water to create an inexpensive nickel-based electrode that efficiently oxidizes urea. A voltage of .037V is required to break down urea. In comparison, 1.23V are required to break down water.”