▎ 摘　　要

The structural and adsorption properties of activated graphene/metal-organic framework (MOF) composites are investigated for four samples synthesized by in-situ crystallization and sonication-assisted methods. Depending on the method used, the composites showed different morphology, structure and consequently adsorption properties toward H-2 and CH4. Addition of KOH-activated graphene during synthesis of an aluminum-containing MOF (MOF520) under sonication conditions boosted adsorption capacities of the resulting composite with respect to both adsorbates, while the in-situ crystallization of MOF520 in mesopores of the CO2-activated graphene assured very effective coupling of both components. Such comparative study is valuable for the design and synthesis of MOF-based composites for various applications.