Angewandte Chemie International Edition
10.1002/anie.202011802
RESEARCH ARTICLE
flexible framework NTU-65. Under optimized temperature, NTU-
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6
5 adsorbed large amount of C
opening and only negligible amount of C
adsorption enabled one-step separation of C
mixture of C /C /CO and high purity C
2
H
2
and CO
2
through gate-
2
H
4
. Such selective
[
[
8]
9]
2
H
4
from a ternary
can be obtained
uptake
also prevented its co-adsorption therefore yielded high
percentage of recovered C . Such gate-opening pressure
2
H
4
2
H
2
2
2
H
4
2 4
through single breakthrough cycle. The ultralow C H
2
H
4
optimization strategy would be broadly useful for separations by
flexible MOFs. It is foreseeable that more multi-component
separations will be realized by flexible MOFs in the near future.
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Acknowledgements
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3
We thank the financial support of the National Natural Science
Foundation of China (21671102), the Young and Middle-aged
Academic Leader of Jiangsu Provincial Blue Project, the Six
Talent Peaks Project in Jiangsu Province (JY-030), the State
Key Laboratory of Materials-Oriented Chemical Engineering
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ZK201803) and award AX-1730 from Welch Foundation. The
computational resources provided by the High Performance
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Keywords: Metal-organic frameworks, gate-opening, ethylene,
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