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A Robust Zeolitic Imidazolate Framework Membrane with High H 2 /CO 2 Separation Performance under Hydrothermal Conditions.
- Source :
-
ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2019 May 01; Vol. 11 (17), pp. 15748-15755. Date of Electronic Publication: 2019 Apr 17. - Publication Year :
- 2019
-
Abstract
- An upsurge in searching membranes with high selectivity, permeability, and stability, which have been considered to be promising in the membrane-based gas separation process, has received huge attentions in academia and industry. In this work, we demonstrated a new molecular sieving ZIF membrane, which has a unique mixed-ligand ZIF structure constructed by two bulk imidazolate linkers within the zeolite GIS topology, resulting in appropriate aperture size, strong affinity to CO <subscript>2</subscript> , exceptional thermal and chemical stabilities, and superhydrophobic properties. Benefited from these features, the resulting JUC-160 membrane indeed exhibited remarkable separation efficiency and stability, with excellent H <subscript>2</subscript> /CO <subscript>2</subscript> selectivity of 26.3 and considerable H <subscript>2</subscript> permeance of 9.75 × 10 <superscript>-7</superscript> mol m <superscript>-2</superscript> s <superscript>-1</superscript> Pa <superscript>-1</superscript> under high temperature up to 200 °C. Furthermore, owing to its superhydrophobicity, the JUC-160 membrane could maintain its prominent separation performance even with the presence of steam.
Details
- Language :
- English
- ISSN :
- 1944-8252
- Volume :
- 11
- Issue :
- 17
- Database :
- MEDLINE
- Journal :
- ACS applied materials & interfaces
- Publication Type :
- Academic Journal
- Accession number :
- 30964634
- Full Text :
- https://doi.org/10.1021/acsami.9b01051