Kumari, Bharti ; John, Daniel ; Hoffmann, Paul ; Spende, Anne ; Toimil-Molares, Maria Eugenia ; Trautmann, Christina ; Hess, Christian ; Ruff, Philip ; Schulze, Marcus ; Stark, Robert ; Buntkowsky, Gerd ; Andrieu-Brunsen, Annette ; Gutmann, Torsten (2018)
Surface enhanced DNP assisted solid-state NMR of functionalized SiO2 coated polycarbonate membranes.
In: Zeitschrift für Physikalische Chemie, 232 (7-8)
doi: 10.1515/zpch-2017-1032
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Surface enhanced solid-state NMR by dynamic nuclear polarization (DNP SENS) enables the characterization of the inner-pore surface functionalization of porous etched ion-track membranes exhibiting low specific surface areas compared to typical SBA- or MCM-type mesoporous silica materials. The membranes were conformally coated with a 5 nm thin SiO2 layer by atomic layer deposition. This layer was subsequently modified by aminopropyl silane linkers that allow further functionalization via the terminal amine group. The results evidence that in principle DNP SENS is a capable tool to analyze more complex porous systems, e.g. bioinspired functional etched ion-track membranes down to the molecular level. These results are relevant also for single nanopore systems, for which a direct analysis of the channel surface functionalization is not feasible by classical characterization methods. The applicability of DNP SENS to complex porous systems requires the optimization of the sample preparation and measurement parameters.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Kumari, Bharti ; John, Daniel ; Hoffmann, Paul ; Spende, Anne ; Toimil-Molares, Maria Eugenia ; Trautmann, Christina ; Hess, Christian ; Ruff, Philip ; Schulze, Marcus ; Stark, Robert ; Buntkowsky, Gerd ; Andrieu-Brunsen, Annette ; Gutmann, Torsten |
| Art des Eintrags: | Bibliographie |
| Titel: | Surface enhanced DNP assisted solid-state NMR of functionalized SiO2 coated polycarbonate membranes |
| Sprache: | Englisch |
| Publikationsjahr: | 6 März 2018 |
| Verlag: | de Gruyter |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Zeitschrift für Physikalische Chemie |
| Jahrgang/Volume einer Zeitschrift: | 232 |
| (Heft-)Nummer: | 7-8 |
| DOI: | 10.1515/zpch-2017-1032 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Surface enhanced solid-state NMR by dynamic nuclear polarization (DNP SENS) enables the characterization of the inner-pore surface functionalization of porous etched ion-track membranes exhibiting low specific surface areas compared to typical SBA- or MCM-type mesoporous silica materials. The membranes were conformally coated with a 5 nm thin SiO2 layer by atomic layer deposition. This layer was subsequently modified by aminopropyl silane linkers that allow further functionalization via the terminal amine group. The results evidence that in principle DNP SENS is a capable tool to analyze more complex porous systems, e.g. bioinspired functional etched ion-track membranes down to the molecular level. These results are relevant also for single nanopore systems, for which a direct analysis of the channel surface functionalization is not feasible by classical characterization methods. The applicability of DNP SENS to complex porous systems requires the optimization of the sample preparation and measurement parameters. |
| Freie Schlagworte: | dynamic nuclear polarization, etched ion-track membranes, silica coating, solid-state NMR, surface analysis |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physics of Surfaces 07 Fachbereich Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut 07 Fachbereich Chemie > Eduard Zintl-Institut 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 28 Mai 2018 05:39 |
| Letzte Änderung: | 03 Jul 2024 02:30 |
| PPN: | |
| Sponsoren: | This work has been supported by the DFG under contract Bu 911/20-1 (DNP spectrometer) and FOR1583 Grant Nos. Bu 911-18-2, HE 4515/4-2., The authors further thank the project iNAPO by the Hessen State Ministry of Higher Education, Research and the Arts for financial support. |
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Surface Enhanced DNP Assisted Solid-State NMR of Functionalized SiO2 Coated Polycarbonate Membranes. (deposited 01 Okt 2021 11:21)
- Surface enhanced DNP assisted solid-state NMR of functionalized SiO2 coated polycarbonate membranes. (deposited 28 Mai 2018 05:39) [Gegenwärtig angezeigt]
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