Details
| Original language | English |
|---|---|
| Pages (from-to) | 9582-9586 |
| Number of pages | 5 |
| Journal | Journal of the American Chemical Society |
| Volume | 142 |
| Issue number | 21 |
| Early online date | 18 Apr 2020 |
| Publication status | Published - 27 May 2020 |
Abstract
Separation is one of the most energy-intensive processes in the chemical industry, and membrane-based separation technology helps to reduce the energy consumption dramatically. Supported metal-organic framework (MOF) layers hold great promise as a molecular sieve membrane, yet only a few MOF membranes showed the expected separation performance. The main reasons include e.g. nonselective grain boundary transport or the flexible MOF framework, especially the inevitable linker rotation. Here, we propose a crystal engineering strategy that balances the grain boundary structure and framework flexibility in Co-Zn bimetallic zeolitic imidazolate framework (ZIF) membranes and exploit their contributions to the improvement of membrane quality and separation performance. It reveals that a good balance between the two trade-off factors enabled a "sweet spot"that offers the best C3H6/C3H8 separation factor up to 200.
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- General Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Chemical Engineering(all)
- Colloid and Surface Chemistry
Sustainable Development Goals
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In: Journal of the American Chemical Society, Vol. 142, No. 21, 27.05.2020, p. 9582-9586.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Balancing the Grain Boundary Structure and the Framework Flexibility through Bimetallic Metal-Organic Framework (MOF) Membranes for Gas Separation
AU - Hou, Qianqian
AU - Zhou, Sheng
AU - Wei, Yanying
AU - Caro, Jürgen
AU - Wang, Haihui
N1 - Funding Information: We gratefully acknowledge the funding from the Natural Science Foundation of China (21861132013 and 51621001), Guangdong Natural Science Funds for Distinguished Young Scholar (2017A030306002), and Fundamental Research Funds for the Central Universities.
PY - 2020/5/27
Y1 - 2020/5/27
N2 - Separation is one of the most energy-intensive processes in the chemical industry, and membrane-based separation technology helps to reduce the energy consumption dramatically. Supported metal-organic framework (MOF) layers hold great promise as a molecular sieve membrane, yet only a few MOF membranes showed the expected separation performance. The main reasons include e.g. nonselective grain boundary transport or the flexible MOF framework, especially the inevitable linker rotation. Here, we propose a crystal engineering strategy that balances the grain boundary structure and framework flexibility in Co-Zn bimetallic zeolitic imidazolate framework (ZIF) membranes and exploit their contributions to the improvement of membrane quality and separation performance. It reveals that a good balance between the two trade-off factors enabled a "sweet spot"that offers the best C3H6/C3H8 separation factor up to 200.
AB - Separation is one of the most energy-intensive processes in the chemical industry, and membrane-based separation technology helps to reduce the energy consumption dramatically. Supported metal-organic framework (MOF) layers hold great promise as a molecular sieve membrane, yet only a few MOF membranes showed the expected separation performance. The main reasons include e.g. nonselective grain boundary transport or the flexible MOF framework, especially the inevitable linker rotation. Here, we propose a crystal engineering strategy that balances the grain boundary structure and framework flexibility in Co-Zn bimetallic zeolitic imidazolate framework (ZIF) membranes and exploit their contributions to the improvement of membrane quality and separation performance. It reveals that a good balance between the two trade-off factors enabled a "sweet spot"that offers the best C3H6/C3H8 separation factor up to 200.
UR - http://www.scopus.com/inward/record.url?scp=85087507416&partnerID=8YFLogxK
U2 - 10.1021/jacs.0c02181
DO - 10.1021/jacs.0c02181
M3 - Article
AN - SCOPUS:85087507416
VL - 142
SP - 9582
EP - 9586
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 21
ER -