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Locating the binding domains in a highly selective mixed matrix membrane via synchrotron IR microspectroscopy

: Jacques, N.M.; Rought, P.R.E.; Fritsch, D.; Savage, M.; Godfrey, H.G.W.; Li, L.; Mitra, T.; Frogley, M.D.; Cinque, G.; Yang, S.; Schröder, M.


Chemical communications 54 (2018), No.23, pp.2866-2869
ISSN: 0022-4936
ISSN: 0009-241X
ISSN: 1359-7345
Journal Article
Fraunhofer IAP ()

The binding domains within a mixed matrix membrane (MMM) that is selective for CO2 comprising MFM-300(Al) and the polymer 6FDA-Durene-DABA have been established via in situ synchrotron IR microspectroscopy. The MOF crystals are fully accessible and play a critical role in the binding of CO2, creating a selective pathway to promote permeation of CO2 within and through the MMM. This study reveals directly the molecular mechanism for the overall enhanced performance of this MMM in terms of permeability, solubility and selectivity for CO2.