▎ 摘　　要

NOVELTY - Graphene oxide composite comprises a triazole functional group and a sulfonic acid or sulfonate functional group introduced into graphene oxide. USE - The graphene oxide composite is useful for proton exchange membrane for fuel cell (claimed). ADVANTAGE - The graphene oxide composition has excellent water absorption and can significantly improve hydrogen ion conductivity by lowering activation energy required for the movement of hydrogen ions. The proton exchange membrane has excellent physical and chemical stability compared to a membrane not containing a filler due to the reinforced filler effect of graphene oxide, and can exhibit a higher performance than that of a conventional commercialized fuel cell, and can significantly reduce a decrease in maximum power density, particularly at low humidity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) proton exchange membrane, comprising graphene oxide complex and base polymer; (2) producing graphene oxide composite, comprising (a) forming at least one of ethynyl and azide functional groups in graphene oxide, and (b) reacting the functional group formed graphene oxide with at least one of an ethynyl compound and an azide compound to form a graphene oxide complex having a triazole functional group; and (3) manufacturing proton exchange membrane, comprising (a) adding the graphene oxide composite and a base polymer to a solvent to form a solution, and (b) forming a film by heating the solution after casting.