Li, Xiaolin, Wang, Juehua, Bai, Nannan, Zhang, Xinran, Han, Xue, da Silva, Ivan, Morris, Christopher G, Xu, Shaojun, Wilary, Damian M, Sun, Yinyong et al (show 12 more authors)
(2020)
Refinement of pore size at sub-angstrom precision in robust metal-organic frameworks for separation of xylenes.
NATURE COMMUNICATIONS, 11 (1).
4280-.
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Abstract
The demand for xylenes is projected to increase over the coming decades. The separation of xylene isomers, particularly p- and m-xylenes, is vital for the production of numerous polymers and materials. However, current state-of-the-art separation is based upon fractional crystallisation at 220 K which is highly energy intensive. Here, we report the discrimination of xylene isomers via refinement of the pore size in a series of porous metal–organic frameworks, MFM-300, at sub-angstrom precision leading to the optimal kinetic separation of all three xylene isomers at room temperature. The exceptional performance of MFM-300 for xylene separation is confirmed by dynamic ternary breakthrough experiments. In-depth structural and vibrational investigations using synchrotron X-ray diffraction and terahertz spectroscopy define the underlying host–guest interactions that give rise to the observed selectivity (p-xylene < o-xylene < m-xylene) and separation factors of 4.6–18 for p- and m-xylenes.
Item Type: | Article |
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Uncontrolled Keywords: | metal-organic frameworks |
Depositing User: | Symplectic Admin |
Date Deposited: | 01 Oct 2020 09:00 |
Last Modified: | 18 Jan 2023 23:30 |
DOI: | 10.1038/s41467-020-17640-4 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3103124 |
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Refinement of pore size at sub-angstrom precision in robust metal-organic frameworks for separation of xylenes. (deposited 17 Sep 2020 07:52)
- Refinement of pore size at sub-angstrom precision in robust metal-organic frameworks for separation of xylenes. (deposited 01 Oct 2020 09:00) [Currently Displayed]