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

Nicholas M. Jacques; Peter R. E. Rought; Detlev Fritsch; Mathew Savage; Harry G. W. Godfrey; Lei Li; Tamoghna Mitra; Mark D. Frogley; Gianfelice Cinque; Sihai Yang; Martin Schröder

doi:10.1039/C7CC08932E

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

Nicholas M. Jacques,

^a Peter R. E. Rought,

^a Detlev Fritsch,

^b Mathew Savage,

^a Harry G. W. Godfrey,

^a Lei Li,^a Tamoghna Mitra,^c Mark D. Frogley,^d Gianfelice Cinque,^d Sihai Yang*^a and Martin Schröder

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry, University of Manchester, Oxford Road, Manchester, UK
E-mail: Sihai.Yang@manchester.ac.uk, M.Schroder@manchester.ac.uk

^b Fraunhofer IAP, FB3, Geiselbergstrasse 69, Potsdam-Golm, Germany

^c Department of Chemistry, University of Liverpool, Liverpool, UK

^d Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, UK

Abstract

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.

Chemical Communications

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

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

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