Towards High Performance Metal–Organic Framework–Microporous Polymer Mixed Matrix Membranes
Addressing Compatibility and Limiting Aging by Polymer Doping
Anahid Sabetghadam (TU Delft - ChemE/Catalysis Engineering)
Xinlei Liu (TU Delft - ChemE/Catalysis Engineering)
Angelica F. Orsi (University of St Andrews)
Magdalena M. Lozinska (University of St Andrews)
Timothy Johnson (Johnson Matthey Technology Center)
Kaspar Jansen (TU Delft - Materializing Futures)
Paul A. Wright (University of St Andrews)
Mariolino Carta (Swansea University)
Neil B. McKeown (The University of Edinburgh)
Freek Kapteijn (TU Delft - ChemE/Catalysis Engineering)
Jorge Gascon (King Abdullah University of Science and Technology, TU Delft - ChemE/Catalysis Engineering)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
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.