Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-023-39319-2
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dc.titleTemperature-dependent rearrangement of gas molecules in ultramicroporous materials for tunable adsorption of CO<inf>2</inf> and C<inf>2</inf>H<inf>2</inf>
dc.contributor.authorZhang, Z
dc.contributor.authorChen, Y
dc.contributor.authorChai, K
dc.contributor.authorKang, C
dc.contributor.authorPeh, SB
dc.contributor.authorLi, H
dc.contributor.authorRen, J
dc.contributor.authorShi, X
dc.contributor.authorHan, X
dc.contributor.authorDejoie, C
dc.contributor.authorDay, SJ
dc.contributor.authorYang, S
dc.contributor.authorZhao, D
dc.date.accessioned2023-07-27T01:27:26Z
dc.date.available2023-07-27T01:27:26Z
dc.date.issued2023-12-01
dc.identifier.citationZhang, Z, Chen, Y, Chai, K, Kang, C, Peh, SB, Li, H, Ren, J, Shi, X, Han, X, Dejoie, C, Day, SJ, Yang, S, Zhao, D (2023-12-01). Temperature-dependent rearrangement of gas molecules in ultramicroporous materials for tunable adsorption of CO<inf>2</inf> and C<inf>2</inf>H<inf>2</inf>. Nature Communications 14 (1) : 3789-. ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-023-39319-2
dc.identifier.issn2041-1723
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/243568
dc.description.abstractThe interactions between adsorbed gas molecules within porous metal-organic frameworks are crucial to gas selectivity but remain poorly explored. Here, we report the modulation of packing geometries of CO2 and C2H2 clusters within the ultramicroporous CUK-1 material as a function of temperature. In-situ synchrotron X-ray diffraction reveals a unique temperature-dependent reversal of CO2 and C2H2 adsorption affinities on CUK-1, which is validated by gas sorption and dynamic breakthrough experiments, affording high-purity C2H2 (99.95%) from the equimolar mixture of C2H2/CO2 via a one-step purification process. At low temperatures (<253 K), CUK-1 preferentially adsorbs CO2 with both high selectivity (>10) and capacity (170 cm3 g−1) owing to the formation of CO2 tetramers that simultaneously maximize the guest-guest and host-guest interactions. At room temperature, conventionally selective adsorption of C2H2 is observed. The selectivity reversal, structural robustness, and facile regeneration of CUK-1 suggest its potential for producing high-purity C2H2 by temperature-swing sorption.
dc.publisherSpringer Science and Business Media LLC
dc.sourceElements
dc.subjectTemperature
dc.subjectCarbon Dioxide
dc.subjectAdsorption
dc.subjectCold Temperature
dc.subjectBandages
dc.typeArticle
dc.date.updated2023-07-23T08:04:52Z
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1038/s41467-023-39319-2
dc.description.sourcetitleNature Communications
dc.description.volume14
dc.description.issue1
dc.description.page3789-
dc.published.stateAccepted
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