467595 CO2, N2 and CH4 Adsorption into Novel MOF/Graphene-like Composites
The starting MOF material is HKUST-1 or Cu3(BTC)2, which shows high adsorption and selectivity for CO2. Starting from this structure, we evaluated the effect of intercalation, in the assembling stage, of carbonaceous graphene-like layers (GL) that induce modifications to the structure and porosity distribution, generating the so-called hybrid MOF-GL materials (MGLs). We also investigated the effect of the partial replacement of Copper centers with Zinc centers (ZnMOFs), and of the simultaneous presence of Zinc centers and of graphene like layers (ZnMGLs). The different materials show rather different gas adsoprtion properties, that depend on the chemical structure and on the material porosity. In particular, the samples with the highest adsorption capacity in comparison to HKUST-1 are the MGL ones, while the samples ZnMOF and ZnMGL have a lower CO2 uptake. The majority of adsorption isotherms shows a type I behaviour.
 M. Alfè, V. Gargiulo, L. Lisi, R. Di Capua, Synthesis and characterization of conductive copper metal-organic framework/graphene-like composites, Materials Chemistry and Physics 147 (2014) 744-750
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