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| Verfasst von: | Weigold, Svenja [VerfasserIn]  |
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| | Spyridakou, Marianna [VerfasserIn] |
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| | Tzourtzouklis, Ioannis [VerfasserIn] |
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| | Freudenberg, Jan [VerfasserIn] |
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| | Bunz, Uwe H. F. [VerfasserIn] |
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| | Müllen, Klaus [VerfasserIn] |
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| | Floudas, George [VerfasserIn] |
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| Titel: | Interplay of ion-conduction and nanoscale self-assembly in amphiphilic Janus-Type hexa-peri-hexabenzocoronenes |
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| Verf.angabe: | Svenja Weigold, Marianna Spyridakou, Ioannis Tzourtzouklis, Jan Freudenberg, Uwe H.F. Bunz, Klaus Müllen, and George Floudas |
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| E-Jahr: | 2024 |
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| Jahr: | 26 July 2024 |
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| Umfang: | 8 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | Online veröffentlicht: 10. Juli 2024 ; Gesehen am 19.12.2024 |
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| Titel Quelle: | Enthalten in: ACS applied nano materials |
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| Ort Quelle: | Washington, DC : ACS Publications, 2018 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 7(2024), 14 vom: Juli, Seite 16256-16263 |
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| ISSN Quelle: | 2574-0970 |
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| Abstract: | Ionic discotic liquid crystals combine ion conduction with fluid, yet ordered, liquid crystal phases at ambient temperature, making them suitable nanomaterials for ion transport and energy storage. A series of Janus-type hexa-peri-hexabenzocoronenes (HBCs) with ionic (sulfonate) groups covalently bonded to the HBC core, and tetraalkylammonium counterions (sizes from 0.15 to 0.95 nm) are synthesized and investigated with respect to the self-assembly and ion dynamics. We find that the counterion size affects the nanoscale self-assembly and ionic conductivity in opposite ways. Smaller counterions act as structure formers, whereas larger ones act as structure breakers. The latter exhibits the highest ion dc-conductivity. We quantify the effect of Coulomb interactions on the self-assembly, the glass temperature Tg (which was found to vary by 30 K), and the dc-conductivity (varying by 4 orders of magnitude). The precise synthesis of tailor-made ionic discotic liquid crystals with the HBC core and the characterization of their physical properties revealed that ion-conduction and nanoscale self-assembly in HBCs can be modulated by tuning electrostatic interactions, e.g., by adjusting the size of counterions. |
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| DOI: | doi:10.1021/acsanm.4c02204 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1021/acsanm.4c02204 |
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| | DOI: https://doi.org/10.1021/acsanm.4c02204 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1913046524 |
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| Verknüpfungen: | → Zeitschrift |
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Interplay of ion-conduction and nanoscale self-assembly in amphiphilic Janus-Type hexa-peri-hexabenzocoronenes / Weigold, Svenja [VerfasserIn]; 26 July 2024 (Online-Ressource)
