▎ 摘　　要

NOVELTY - Preparing polyatomic co-doped graphene comprises (i) adding the precursors of the nitrogen source and sulfur source into the deionized water, stirring to completely dissolve, and obtaining precursor solution, (ii) adding the precursor solution and graphene into the ball milling tank at the same time, and ball milling to obtain ball milling mixture, (iii) freeze-drying the ball-milled mixture to obtain mixed powder of graphene and thiourea, and (iv) subjecting the mixed powder of graphene and thiourea to in-situ phosphating treatment under nitrogen conditions to obtain nitrogen, sulfur and phosphorus co-doped graphene. USE - The polyatomic co-doped graphene is useful in air electrode catalyst of zinc-air battery (claimed). ADVANTAGE - The polyatomic co-doped graphene uses mechanical force to generate defective graphene and achieve uniform mixing of precursors-in-situ phosphating to obtain nitrogen, sulfur and phosphorus ternary co-doped graphene, and shows good electrocatalytic oxygen reduction/oxygen evolution performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for polyatomic co-doped graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating the method for preparing polyatomic co-doped graphene (Drawing includes non-English language text).