Abstract
A novel composite membrane consisting of an interconnected MOF scaffold coated with cross-linked poly(ethylene glycol) (PEG) has been developed. As a result of its unique structure, the membrane shows an exceptional 18-fold permeability enhancement as compared to pristine PEG membranes, without compromising the selectivity. This performance is unattainable with current mixed-matrix membranes (MMMs). Our optimized membrane has a permeability of 2700 Barrer with a CO2/N2 selectivity of 35, which surpasses the latest Robeson upper bound.
Original language | English |
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Pages (from-to) | 8597-8602 |
Number of pages | 6 |
Journal | Angewandte Chemie - International Edition |
Volume | 57 |
Issue number | 28 |
DOIs | |
Publication status | Published - 9 Jul 2018 |
Externally published | Yes |
Keywords
- bicontinuous phases
- membranes
- MOF nonwoven cloths
- one-dimensional metal–organic frameworks
- polymers