Towards High Performance Metal–Organic Framework–Microporous Polymer Mixed Matrix Membranes

Addressing Compatibility and Limiting Aging by Polymer Doping

Journal article (2018)

Authors

J. Gascon Sabate , King Abdullah University of Science and Technology
Angelica Orsi University of St Andrews
Magdalena M. Łozińska University of St Andrews
Timothy Johnson Johnson Matthey Technology Center
K.M.B. Jansen Emerging Materials - IDE
Paul A. Wright University of St Andrews
Mariolino Carta Swansea University
Neil B. McKeown The University of Edinburgh
Copyright: © 2018 A. Sabetghadam, X. Liu, Angelica F. Orsi, Magdalena M. Lozinska, Timothy Johnson, K.M.B. Jansen, Paul A. Wright, Mariolino Carta, Neil B. McKeown, F. Kapteijn, Jorge Gascon
DOI: https://doi.org/10.1002/chem.201803006
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Published Date

2018

Language

English

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Abstract

Membrane separation for gas purification is an energy-efficient and environment-friendly technology. However, the development of high performance membranes is still a great challenge. In principle, mixed matrix membranes (MMMs) have the potential to overcome current materials limitations, but in practice there is no straightforward method to match the properties of fillers and polymers (the main components of MMMs) in such a way that the final membrane performance reflects the high performance of the microporous filler and the processability of the continuous polymer phase. This issue is especially important when high flux polymers are utilized. In this work, we demonstrate that the use of small amounts of a glassy polymer in combination with high performance PIM-1 allow for the preparation of metal–organic framework (MOF)-based MMMs with superior separation properties and low aging rates under humid conditions, meeting the commercial target for post-combustion CO2 capture.

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