Adsorptive Separation of CO2 by a Hydrophobic Carborane-Based Metal–Organic Framework under Humid Conditions

We report that the carborane-based metal-organic framework (MOF) mCB-MOF-1 can achieve high adsorptive selectivity for CO₂:N₂ mixtures. This hydrophobic MOF presenting open metal sites shows high CO₂ adsorption capacity and remarkable selectivity values that are maintained even under extremely humid conditions. The comparison of mCB-MOF-1' with MOF-74(Ni) demonstrates the superior performance of the former under challenging moisture operation conditions.