▎ 摘　　要

NOVELTY - Catalyst with stable ultra-thin carbon layer comprises metal nanoparticles and single-atom modified ultra-thin carbon layer. The metal nanoparticles are stabilized on the single-atom modified ultra-thin carbon layer, where the single-atom modified ultra-thin carbon layer is 1-10 layers of graphene modified by non-metal single atoms or metal single atoms other than carbon, and the average diameter of the stabilized metal nanoparticles is 0.5-20 nm. USE - Used as catalyst with stable ultra-thin carbon layer. ADVANTAGE - The catalyst: has excellent electrochemical activity and stability. The method: is easy to mass produce, economical and easy to industrialized production and popularization. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the catalyst with stable ultra-thin carbon layer, comprising (i) providing a metal organic framework material with a size of 20-200nm as a precursor, (ii) placing the metal organic framework material in the solution containing metal ion for cation exchange reaction to obtain the metal organic framework modified material with at least one metal nodes, and (iii) placing the metal organic framework modified material with at least one metal nodes obtained in the step (ii) in a reaction furnace, cleaning the reaction furnace with inert gas, forming the vacuum in the reaction furnace, maintaining the vacuum, raising the temperature of the reaction furnace to a high temperature, and carbonizing the materials in the reaction furnace.