Dokument: Stable Ultramicroporous Metal–Organic Framework with Hydrophilic and Hydrophobic Domains for Selective Gas Adsorption
| Titel: | Stable Ultramicroporous Metal–Organic Framework with Hydrophilic and Hydrophobic Domains for Selective Gas Adsorption | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=73137 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20260430-131045-7 | |||||||
| Kollektion: | Publikationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Texte » Artikel, Aufsatz | |||||||
| Medientyp: | Text | |||||||
| Autoren: | Oestreich, Robert [Autor] Fetzer, Marcus [Autor] Suta, Markus [Autor] Janiak, Christoph [Autor] Yücesan, Gündoğ [Autor] Zhang, Yifei [Autor] Schreiber, Andreas [Autor] Knebel, Alexander [Autor] Hanna, Gabriel [Autor] | |||||||
| Dateien: |
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| Stichwörter: | Gas separation , CO 2 capture , Chemically & thermally stable MOFs | |||||||
| Beschreibung: | Herein, we report the thermal and chemical stability, and the gas adsorption behavior, of a mixed-linker phosphonate MOF, [Cu(4,4′-bpy) 0.5 (1,4-NDPAH 2 )], namely TUB41 (where bpy = bipyridine and NDPAH4 = naphthalenediphosphonic acid). TUB41 demonstrates remarkable chemical stability across a wide pH range (1–11) and retains its structural integrity after 2 years of repeated adsorption cycles and activation at 80 °C under ambient humidity. Cryogenic badsorption experiments reveal that TUB41’s pores selectively exclude gases with larger kinetic diameters, such as N 2 and Ar, while accommodating smaller molecules like CO 2 and H 2 O at elevated temperatures. The enthalpies of adsorption for CO 2 at a loading 0.01 mmol g−1 and H 2 O at a loading of 0.7 mmol g−1 are −41 and −38 kJ mol−1 , respectively, reflecting their strongly attractive interactions with TUB41 under different conditions. Molecular dynamics simulations reveal that CO 2 molecules adopt ordered arrangements in the central hydrophobic regions of the pores, guided by strong nonbonding interactions, while H2 O molecules preferentially bind to the hydrophilic secondary building units. Meansquared displacement analyses confirm that both gases remain spatially constrained within the pores. These findings highlight TUB41 as a chemically robust and highly selective MOF, with potential for applications in gas separation, photocatalytic water splitting, and CO 2 reduction under challenging conditions. | |||||||
| Rechtliche Vermerke: | Originalveröffentlichung:
Oestreich, R., Fetzer, M., Zhang, Y., Schreiber, A., Knebel, A., Suta, M., Janiak, C., Hanna, G., & Yücesan, G. (2025). Stable Ultramicroporous Metal–Organic Framework with Hydrophilic and Hydrophobic Domains for Selective Gas Adsorption. Angewandte Chemie International Edition [ISSN: 1433-7851], 64(40). https://doi.org/10.1002/anie.202513788 | |||||||
| Lizenz: |  Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung 4.0 International Lizenz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät | |||||||
| Dokument erstellt am: | 30.04.2026 | |||||||
| Dateien geändert am: | 30.04.2026 |
