▎ 摘　　要

NOVELTY - Molecular-type hybrid single-atom catalyst comprises carbon material as a carrier and three dimensional transition metal porphyrin/phthalocyanine as an active center, where the loading amount of the active center is 0.2-5 mg/cm2. The carbon material is carbon nanotubes, XC-72 carbon, activated carbon, carbon black, Ketjen black, Super P, and/or graphene and the 3d transition metals include vanadium, chromium, manganese, iron, cobolt, nickel, copper and zinc USE - The catalyst is useful for synthesizing hydrogen peroxide by electro-catalytic oxygen reduction. ADVANTAGE - The catalyst has low cost, simple synthesis, mild condition, suitable for popularization and application of large-scale production, and has good electro-catalysis application prospect. The catalyst not only keeps the single atom site distribution of phthalocyanine/porphyrin, but also has high conductivity of carbon material, overcomes the defect of homogeneous catalyst is not stable, easy agglomeration, and makes up the deficiency of heterogeneous catalyst selectivity is difficult to control. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of the catalyst.