Details
| Original language | English |
|---|---|
| Article number | 120021 |
| Journal | Journal of membrane science |
| Volume | 643 |
| Early online date | 30 Oct 2021 |
| Publication status | Published - 1 Mar 2022 |
Abstract
Hydrogen-bonded Organic Frameworks (HOFs), consisting of H-bonds and strong π-π interaction, are novel materials with ordered and flexible porous frameworks. With permanent porosity, HOFs are considered as a promising material for large-scale preparation of gas separation membranes owing to their superior stability. Herein, we report a novel HOF-based Mixed-Matrix Membrane (MMM) termed HOF-30@PI by blending HOF-30 crystals with PolyImide (PI) for hydrogen separation. The added amount of HOF-30 has a crucial effect on gas separation performance. A HOF-30@PI MMM with 10 wt% HOF-30 exhibits a high hydrogen permeability of 428.1 barrer and H2/CH4 separation factor of 61.7. Owing to good compatibility and the proper pore size of HOF-30 with 4 Å, the HOF-30@PI MMM shows excellent stability and has no obvious separation performance degradation after a 240 h testing. Interestingly, HOF-30@PI MMM has a certain response on pressure because of its flexibility due to hydrogen bonds. Therefore, the usage of HOFs as porous fillers in MMM develops a novel way toward the tailored synthesis of advanced composite membrane materials for gas separation.
Keywords
- Gas separation, HOF-30, Hydrogen separation, Mixed-matrix membranes
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Materials Science(all)
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Filtration and Separation
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In: Journal of membrane science, Vol. 643, 120021, 01.03.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Fabrication of a flexible hydrogen-bonded organic framework based mixed matrix membrane for hydrogen separation
AU - Li, Wei
AU - Li, Yanhong
AU - Caro, Jürgen
AU - Huang, Aisheng
N1 - Funding Information: Financial supports by the National Natural Science Foundation of China ( 21878100 , 22075084 ), and the Fundamental Research Funds for the Central Universities ( 40500-20101-222093 , 40500-20103-222122 ) are acknowledged. We sincerely acknowledge Prof. Libo Li in Taiyuan University of Technology for gases adsorption measurement.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - Hydrogen-bonded Organic Frameworks (HOFs), consisting of H-bonds and strong π-π interaction, are novel materials with ordered and flexible porous frameworks. With permanent porosity, HOFs are considered as a promising material for large-scale preparation of gas separation membranes owing to their superior stability. Herein, we report a novel HOF-based Mixed-Matrix Membrane (MMM) termed HOF-30@PI by blending HOF-30 crystals with PolyImide (PI) for hydrogen separation. The added amount of HOF-30 has a crucial effect on gas separation performance. A HOF-30@PI MMM with 10 wt% HOF-30 exhibits a high hydrogen permeability of 428.1 barrer and H2/CH4 separation factor of 61.7. Owing to good compatibility and the proper pore size of HOF-30 with 4 Å, the HOF-30@PI MMM shows excellent stability and has no obvious separation performance degradation after a 240 h testing. Interestingly, HOF-30@PI MMM has a certain response on pressure because of its flexibility due to hydrogen bonds. Therefore, the usage of HOFs as porous fillers in MMM develops a novel way toward the tailored synthesis of advanced composite membrane materials for gas separation.
AB - Hydrogen-bonded Organic Frameworks (HOFs), consisting of H-bonds and strong π-π interaction, are novel materials with ordered and flexible porous frameworks. With permanent porosity, HOFs are considered as a promising material for large-scale preparation of gas separation membranes owing to their superior stability. Herein, we report a novel HOF-based Mixed-Matrix Membrane (MMM) termed HOF-30@PI by blending HOF-30 crystals with PolyImide (PI) for hydrogen separation. The added amount of HOF-30 has a crucial effect on gas separation performance. A HOF-30@PI MMM with 10 wt% HOF-30 exhibits a high hydrogen permeability of 428.1 barrer and H2/CH4 separation factor of 61.7. Owing to good compatibility and the proper pore size of HOF-30 with 4 Å, the HOF-30@PI MMM shows excellent stability and has no obvious separation performance degradation after a 240 h testing. Interestingly, HOF-30@PI MMM has a certain response on pressure because of its flexibility due to hydrogen bonds. Therefore, the usage of HOFs as porous fillers in MMM develops a novel way toward the tailored synthesis of advanced composite membrane materials for gas separation.
KW - Gas separation
KW - HOF-30
KW - Hydrogen separation
KW - Mixed-matrix membranes
UR - http://www.scopus.com/inward/record.url?scp=85118543174&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2021.120021
DO - 10.1016/j.memsci.2021.120021
M3 - Article
AN - SCOPUS:85118543174
VL - 643
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
M1 - 120021
ER -