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

Lei Gan; Eduardo Andres-Garcia; Guillermo Mínguez Espallargas; José Giner Planas

doi:10.1021/acsami.2c20373

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

ACS Appl Mater Interfaces. 2023 Feb 1;15(4):5309-5316. doi: 10.1021/acsami.2c20373. Epub 2023 Jan 24.

Authors

Lei Gan¹, Eduardo Andres-Garcia², Guillermo Mínguez Espallargas², José Giner Planas¹

Affiliations

¹ Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193Bellaterra, Spain.
² Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, c/Catedrático José Beltrán, 2, 46980Paterna, Spain.

Abstract

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.

Keywords: CO2 adsorption; breakthrough; carboranes; humid conditions; hydrophobic; metal−organic frameworks; selective gas separation.