Two-dimensional metal–organic framework/graphene oxide composites as proton conductors: Chemical grafting vs. physical blending

Key Points

• To compare the effectiveness of chemical grafting and physical blending in enhancing proton conductivity of MOF/graphene oxide composites.
• Synthesis of a zirconium-based MOF, ZrBTB.
• Integration of ZrBTB with graphene oxide via chemical grafting and physical blending methods.
• Characterization of proton conductivity in both composite types.
• The chemical grafting method shows superior proton conductivity compared to physical blending.
• Ultrahigh proton conductivity is achieved with the optimal composite configuration.
• Water stability of the MOF-graphene oxide composites is maintained.