Recycling synthesis of single-atom Zn-nitrogen-carbon catalyst for electrocatalytic reduction of O2 to H2O2

Portable electrochemical synthesis of H2O2, which is widely used for disinfection, sterilization, and waste treatment, has attracted increasing attention. However, low atomic utilization efficiency by-product disposal during the electrocatalysts are inevitable. Based on advantages single-atom catalysts (SACs) towards H2O2 via a 2e− transfer oxygen reduction reaction, this work presents ZnNC SACs as excellent with high use almost no generated by using formamide metal powder precursors. The exhibit selectivity exceeding 80% when working continuously 10,000 s. synthetic strategy described in paper intended to be supplement metal-nitrogen-carbon generation environmental chemical applications.