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| Verfasst von: | Lange, Ralph Z. [VerfasserIn]  |
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| | Synnatschke, Kevin [VerfasserIn] |
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| | Qi, Haoyuan [VerfasserIn] |
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| | Huber, Niklas [VerfasserIn] |
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| | Hofer, Gregor [VerfasserIn] |
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| | Liang, Baokun [VerfasserIn] |
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| | Huck, Christian [VerfasserIn] |
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| | Pucci, Annemarie [VerfasserIn] |
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| | Kaiser, Ute [VerfasserIn] |
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| | Backes, Claudia [VerfasserIn] |
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| | Schlüter, A. Dieter [VerfasserIn] |
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| Titel: | Enriching and quantifying porous single layer 2D polymers by exfoliation of chemically modified van der Waals crystals |
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| Verf.angabe: | Ralph Z. Lange, Kevin Synnatschke, Haoyuan Qi, Niklas Huber, Gregor Hofer, Baokun Liang, Christian Huck, Annemarie Pucci, Ute Kaiser, Claudia Backes, and A. Dieter Schlüter |
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| Jahr: | 2020 |
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| Jahr des Originals: | 2019 |
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| Umfang: | 13 S. |
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| Fussnoten: | First published: 10 December 2019 ; Gesehen am 23.04.2020 |
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| Titel Quelle: | Enthalten in: Angewandte Chemie / International edition |
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| Ort Quelle: | Weinheim : Wiley-VCH, 1962 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 59(2020), 14, Seite 5683-5695 |
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| ISSN Quelle: | 1521-3773 |
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| Abstract: | 2D polymer sheets with six positively charged pyrylium groups at each pore edge in a stacked single crystal can be transformed into a 2D polymer with six pyridines per pore by exposure to gaseous ammonia. This reaction furnishes still a crystalline material with tunable protonation degree at regular nano-sized pores promising as separation membrane. The exfoliation is compared for both 2D polymers with the latter being superior. Its liquid phase exfoliation yields nanosheet dispersions, which can be size-selected using centrifugation cascades. Monolayer contents of ≈30 % are achieved with ≈130 nm sized sheets in mg quantities, corresponding to tens of trillions of monolayers. Quantification of nanosheet sizes, layer number and mass shows that this exfoliation is comparable to graphite. Thus, we expect that recent advances in exfoliation of graphite or inorganic crystals (e.g. scale-up, printing etc.) can be directly applied to this 2D polymer as well as to covalent organic frameworks. |
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| DOI: | doi:10.1002/anie.201912705 |
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| URL: | kostenfrei: Volltext ; Verlag: https://doi.org/10.1002/anie.201912705 |
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| | kostenfrei: Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201912705 |
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| | DOI: https://doi.org/10.1002/anie.201912705 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | layered compounds |
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| | liquid phase exfoliation |
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| | monolayers |
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| | polymers |
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| | post-polymerization modification |
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| K10plus-PPN: | 1695805615 |
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| Verknüpfungen: | → Zeitschrift |
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| Lokale URL UB: |  Zum Volltext |
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Enriching and quantifying porous single layer 2D polymers by exfoliation of chemically modified van der Waals crystals / Lange, Ralph Z. [VerfasserIn]; 2020 (Online-Ressource)
