Abstract
Demand continues for processing methods to shape covalent organic frameworks (COFs) into macroscopic objects that are needed for their practical applications. Herein, a simple compression method to prepare large-scale, free-standing homogeneous and porous imine-based COF-membranes with dimensions in the centimeter range and excellent mechanical properties is reported. This method entails the compression of imine-based COF-aerogels, which undergo a morphological change from an elastic to plastic material. The COF-membranes fabricated upon compression show good performances for the separation of gas mixtures of industrial interest, N2/CO2 and CH4/CO2. It is believed that the new procedure paves the way to a broader range of COF-membranes.
| Original language | English |
|---|---|
| Article number | 2104643 |
| Journal | Advanced Science |
| Volume | 9 |
| Issue number | 7 |
| DOIs | |
| State | Published - 4 Mar 2022 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2022 The Authors. Advanced Science published by Wiley-VCH GmbH.
Keywords
- aerogels
- COF-membranes
- covalent organic frameworks
- gas mixtures separation
- porous materials
ASJC Scopus subject areas
- Medicine (miscellaneous)
- General Chemical Engineering
- General Materials Science
- Biochemistry, Genetics and Molecular Biology (miscellaneous)
- General Engineering
- General Physics and Astronomy