▎ 摘　　要

NOVELTY - Preparing graphene oxide-loaded modified covalent organic frameworks (COFs)-based electrocatalyst comprises mixing COFs-based catalyst and graphene oxide, reacting COFs and graphene oxide in solvent under the action of mechanical force, and then loading COFs material on the surface of graphene oxide to obtain modified catalyst. USE - The method is useful for preparing graphene oxide-loaded modified covalent organic frameworks (COFs)-based electrocatalyst. ADVANTAGE - The electrocatalyst: has catalytic performance and simple preparation process.