Title
Random organic framework membranes with hierarchical channels for H2 separation
Author
Luan, Liping (Tianjin University)
Shi, Puxin (Tianjin University)
Wang, Zhi (Tianjin University)
Kapteijn, F. (TU Delft ChemE/Catalysis Engineering) 
Liu, Xinlei (Tianjin University)
Date
2024
Abstract
Novel membrane materials for H2 separation are wanted. How to overcome the “trade-off” between membrane permeability and selectivity is a tough challenge. Here we report new random organic framework membranes with benzimidazole and imine linkages to form hierarchical channels. Both high H2-selective and fast H2 transport pathways are created. The preparation parameters are thoroughly studied and the membrane structures are well characterized by SEM, AFM, NMR, XPS, gas sorption, etc. Effect of feed conditions on membrane performance, such as composition, pressure and temperature, is investigated. The membrane performance transcends the upper bounds of H2/CO2, H2/N2 and H2/CH4 with excellent stability.
Subject
Benzimidazole and imine linked polymer
H separation
Hierarchical channels
Random organic framework membranes
To reference this document use:
http://resolver.tudelft.nl/uuid:fa3a5bd1-02d6-4ba4-b7dc-3d6782cb6df6
DOI
https://doi.org/10.1016/j.memsci.2024.122420
Embargo date
2024-07-08
ISSN
0376-7388
Source
Journal of Membrane Science, 694
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2024 Liping Luan, Puxin Shi, Zhi Wang, F. Kapteijn, Xinlei Liu