Abstract
MOF constrictor: Covalent modification of a ZIF-90 membrane was achieved by imine condensation of the aldehyde groups of the metal-organic framework (MOF) linker by ethanolamine (see picture). The modification leads to constriction of the pore apertures and prevents unselective permeation through defect pores, thus improving gas separation performance. For a H2/CO2 mixture, selectivity can be increased from 7.3 to 62.5.
| Original language | English |
|---|---|
| Pages (from-to) | 4979-4982 |
| Number of pages | 4 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 50 |
| Issue number | 21 |
| DOIs | |
| State | Published - 16 May 2011 |
| Externally published | Yes |
Keywords
- imidazolate
- membranes
- metal-organic frameworks
- molecular sieves
- post-synthetic modification