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Hydrocarbon Sorption in Flexible MOFs—Part III: Modulation of Gas Separation Mechanisms.

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Title: Hydrocarbon Sorption in Flexible MOFs—Part III: Modulation of Gas Separation Mechanisms.
Authors: Preißler-Kurzhöfer, Hannes1,2 (AUTHOR) che09bcz@studserv.uni-leipzig.de, Lange, Marcus2 (AUTHOR) moellmer@inc.uni-leipzig.de, Möllmer, Jens2 (AUTHOR), Erhart, Oliver3 (AUTHOR) krautscheid@rz.uni-leipzig.de, Kobalz, Merten3 (AUTHOR), Krautscheid, Harald3 (AUTHOR), Gläser, Roger2 (AUTHOR) che09bcz@studserv.uni-leipzig.de
Source: Nanomaterials (2079-4991). Feb2024, Vol. 14 Issue 3, p241. 14p.
Subjects: Separation of gases, Sorption, Chemical properties, Thermodynamic equilibrium, Hydrocarbons
Abstract: Single gas sorption experiments with the C4-hydrocarbons n-butane, iso-butane, 1-butene and iso-butene on the flexible MOFs Cu-IHMe-pw and Cu-IHEt-pw were carried out with both thermodynamic equilibrium and overall sorption kinetics. Subsequent static binary gas mixture experiments of n-butane and iso-butane unveil a complex dependence of the overall selectivity on sorption enthalpy, rate of structural transition as well as steric effects. A thermodynamic separation favoring iso-butane as well as kinetic separation favoring n-butane are possible within Cu-IHMe-pw while complete size exclusion of iso-butane is achieved in Cu-IHEt-pw. This proof-of-concept study shows that the structural flexibility offers additional levers for the precise modulation of the separation mechanisms for complex mixtures with similar chemical and physical properties with real selectivities of >10. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Hydrocarbon Sorption in Flexible MOFs—Part III: Modulation of Gas Separation Mechanisms.
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  Data: <searchLink fieldCode="AR" term="%22Preißler-Kurzhöfer%2C+Hannes%22">Preißler-Kurzhöfer, Hannes</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> che09bcz@studserv.uni-leipzig.de</i><br /><searchLink fieldCode="AR" term="%22Lange%2C+Marcus%22">Lange, Marcus</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> moellmer@inc.uni-leipzig.de</i><br /><searchLink fieldCode="AR" term="%22Möllmer%2C+Jens%22">Möllmer, Jens</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Erhart%2C+Oliver%22">Erhart, Oliver</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> krautscheid@rz.uni-leipzig.de</i><br /><searchLink fieldCode="AR" term="%22Kobalz%2C+Merten%22">Kobalz, Merten</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Krautscheid%2C+Harald%22">Krautscheid, Harald</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gläser%2C+Roger%22">Gläser, Roger</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> che09bcz@studserv.uni-leipzig.de</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Feb2024, Vol. 14 Issue 3, p241. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Separation+of+gases%22">Separation of gases</searchLink><br /><searchLink fieldCode="DE" term="%22Sorption%22">Sorption</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+properties%22">Chemical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamic+equilibrium%22">Thermodynamic equilibrium</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrocarbons%22">Hydrocarbons</searchLink>
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  Data: Single gas sorption experiments with the C4-hydrocarbons n-butane, iso-butane, 1-butene and iso-butene on the flexible MOFs Cu-IHMe-pw and Cu-IHEt-pw were carried out with both thermodynamic equilibrium and overall sorption kinetics. Subsequent static binary gas mixture experiments of n-butane and iso-butane unveil a complex dependence of the overall selectivity on sorption enthalpy, rate of structural transition as well as steric effects. A thermodynamic separation favoring iso-butane as well as kinetic separation favoring n-butane are possible within Cu-IHMe-pw while complete size exclusion of iso-butane is achieved in Cu-IHEt-pw. This proof-of-concept study shows that the structural flexibility offers additional levers for the precise modulation of the separation mechanisms for complex mixtures with similar chemical and physical properties with real selectivities of >10. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano14030241
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        Text: English
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        PageCount: 14
        StartPage: 241
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      – SubjectFull: Separation of gases
        Type: general
      – SubjectFull: Sorption
        Type: general
      – SubjectFull: Chemical properties
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      – SubjectFull: Thermodynamic equilibrium
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      – SubjectFull: Hydrocarbons
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      – TitleFull: Hydrocarbon Sorption in Flexible MOFs—Part III: Modulation of Gas Separation Mechanisms.
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            NameFull: Preißler-Kurzhöfer, Hannes
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              Text: Feb2024
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              Y: 2024
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