Despot, Laura ; Hinduja, Chirag ; Lehn, Robert ; Mikolei, Joanna ; Richter, Timo ; Köbschall, Kilian ; Stanzel, Mathias ; Berger, Rüdiger ; Hussong, Jeanette ; Ceolín, Marcelo ; Andrieu-Brunsen, Annette (2024)
Molecular transport and water condensation inside mesopores with wettability step gradients.
In: Nanoscale Advances, 2023, 5 (22)
doi: 10.26083/tuprints-00026486
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The wettabilities of nanoscale porous surfaces play important roles in the context of molecular and fluid transport or oil–water separation. The wettability pattern along a nanopore strongly influences fluid distribution throughout the membrane. Mesoporous silica thin films with gradually adjusted wettabilities were fabricated via cocondensation. With consecutive mesoporous layer depositions, double-layer mesoporous silica films with asymmetric or so-called Janus wettability patterns were generated. The effects of these wetting gradients on mass transport, water imbibition, and water vapor condensation were investigated with ellipsometry, cyclic voltammetry (CV), drop friction force instrument (DoFFIs), fluorescence microscopy and interferometry. By increasing the film thickness of the hydrophobic mesoporous silica top layer deposited on a hydrophilic mesoporous silica layer up to 205 nm, molecular transport through both the layers was prevented. However, water was observed to condense onto the bottom layer, and transport occurred for thinner top layers.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Despot, Laura ; Hinduja, Chirag ; Lehn, Robert ; Mikolei, Joanna ; Richter, Timo ; Köbschall, Kilian ; Stanzel, Mathias ; Berger, Rüdiger ; Hussong, Jeanette ; Ceolín, Marcelo ; Andrieu-Brunsen, Annette |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Molecular transport and water condensation inside mesopores with wettability step gradients |
| Sprache: | Englisch |
| Publikationsjahr: | 20 Februar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Ort der Erstveröffentlichung: | Cambridge, UK |
| Verlag: | Royal Society of Chemistry |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nanoscale Advances |
| Jahrgang/Volume einer Zeitschrift: | 5 |
| (Heft-)Nummer: | 22 |
| Kollation: | 12 Seiten |
| DOI: | 10.26083/tuprints-00026486 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/26486 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | The wettabilities of nanoscale porous surfaces play important roles in the context of molecular and fluid transport or oil–water separation. The wettability pattern along a nanopore strongly influences fluid distribution throughout the membrane. Mesoporous silica thin films with gradually adjusted wettabilities were fabricated via cocondensation. With consecutive mesoporous layer depositions, double-layer mesoporous silica films with asymmetric or so-called Janus wettability patterns were generated. The effects of these wetting gradients on mass transport, water imbibition, and water vapor condensation were investigated with ellipsometry, cyclic voltammetry (CV), drop friction force instrument (DoFFIs), fluorescence microscopy and interferometry. By increasing the film thickness of the hydrophobic mesoporous silica top layer deposited on a hydrophilic mesoporous silica layer up to 205 nm, molecular transport through both the layers was prevented. However, water was observed to condense onto the bottom layer, and transport occurred for thinner top layers. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-264868 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) 07 Fachbereich Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie |
| Hinterlegungsdatum: | 20 Feb 2024 08:28 |
| Letzte Änderung: | 21 Feb 2024 06:25 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Molecular transport and water condensation inside mesopores with wettability step gradients. (deposited 20 Feb 2024 08:28) [Gegenwärtig angezeigt]
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