Abundant oxygen vacancies assisting NaPO 3 supported by porous carbon derived from cotton pulp black liquor as a transition metal-free electrocatalyst for efficiently enhancing the urea oxidation reaction

Key Points

• The aim is to explore effective transition-metal-free electrocatalysts for enhancing the urea oxidation reaction.
• Synthesis of porous carbon from cotton pulp black liquor
• Characterization of oxygen vacancies in the electrocatalyst
• Evaluation of electrocatalytic performance in urea oxidation
• Significant enhancement of urea oxidation reaction performance
• Identification of abundant oxygen vacancies contributing to improved catalysis
• Demonstrated potential for green hydrogen production and wastewater treatment