To reduce energy consumption of electrolytic water, other anodic oxidation reactions may be used to replaceOER, such as the oxidationof urea, hydrazine, ethanol, glucose, glycerol and furfural, aside from catalysts for reducing overpotential. Urea as an environmental pollutant, widely exists in domestic wastewater and human and animal urine, the products obtained after urea oxidation reaction (UOR) are pollution-free. UOR replacing OER is therefore not just a promising hydrogen production strategy, but also an effective way of improving the environment [28].