Effects of electrolytes on two-electron ORR single-atom catalysis

Pollution from many aspects of daily life and industrial produc-tion,such as sterilization,thesewage purification,chemical synthe-sis,and paper or cotton fabric bleaching,has been a serious threat to human health.Hydrogen peroxide(H2O2)is a pollution-free chemical oxidant whose byproduct is only water(H2O),which is a green product.Overall,these advantages contribute to its annual global output of approximately 2.2 million tons,which will rapidly increase in the next few years[1].