▎ 摘　　要

NOVELTY - Preparing metal-nitrogen molecule/carbon nano fiber composite material by electrostatic spinning, by using precursor containing metal, nitrogen element, macromolecule polymer to prepare spinning solution for electrostatic spinning, obtaining metal-nitrogen molecule/polymer composite nano fiber film; then pre-oxidizing the obtained composite nano fiber, and carbonizing. USE - The metal-nitrogen molecule/carbon nano fiber composite material or metal-nitrogen molecule/graphene/carbon nano fiber material composite material is used as catalyst to catalyze oxygen reduction (ORR) and carbon dioxide electric reduction reaction (CO2RR) (claimed). ADVANTAGE - The composite material has uniform appearance, is prepared by simple technique, is economical, easy to recycle, and has excellent performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for method for preparing metal-nitrogen molecule/graphene/carbon nano fiber composite material by electrostatic spinning, comprising using precursor containing metal, nitrogen element, graphene, macromolecule polymer to prepare spinning solution for electrostatic spinning, obtaining metal-nitrogen molecule/graphene/polymer composite nano fiber film; then pre-oxidizing the obtained composite nano fiber, and carbonizing.