Li, Mohan ; Ulrich, Nils ; Schubert, Ina ; Sigle, Wilfried ; Peter Wagner, Michael Florian ; Trautmann, Christina ; Toimil-Molares, Maria Eugenia (2023)
Three-dimensional free-standing gold nanowire networks as a platform for catalytic applications.
In: RSC Advances, 13 (7)
doi: 10.1039/D2RA08035D
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report the catalytic performance of networks of highly interconnected Au nanowires with diameters tailored between 80 and 170 nm. The networks were synthesized by electrodeposition in etched ion-track polymer templates, and the synthesis conditions were developed for optimal wire crystallinity and network homogeneity. The nanowire networks were self-supporting and could be easily handled as electrodes in electrochemical cells or other devices. The electrochemically active surface area of the networks increased systematically with increasing the wire diameter. They showed a very stable performance during 200 CV cycles of methanol oxidation reactions, with the peak current density reaching up to 200 times higher than that of a flat reference electrode, with only a 5% drop in the peak current density. The Au nanowire networks proved to be excellent model systems for investigation of the performance of porous catalysts and very promising nanosystems for application in direct alcohol fuel cell catalysts.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Li, Mohan ; Ulrich, Nils ; Schubert, Ina ; Sigle, Wilfried ; Peter Wagner, Michael Florian ; Trautmann, Christina ; Toimil-Molares, Maria Eugenia |
| Art des Eintrags: | Bibliographie |
| Titel: | Three-dimensional free-standing gold nanowire networks as a platform for catalytic applications |
| Sprache: | Englisch |
| Publikationsjahr: | 31 Januar 2023 |
| Verlag: | RSC Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | RSC Advances |
| Jahrgang/Volume einer Zeitschrift: | 13 |
| (Heft-)Nummer: | 7 |
| DOI: | 10.1039/D2RA08035D |
| Kurzbeschreibung (Abstract): | We report the catalytic performance of networks of highly interconnected Au nanowires with diameters tailored between 80 and 170 nm. The networks were synthesized by electrodeposition in etched ion-track polymer templates, and the synthesis conditions were developed for optimal wire crystallinity and network homogeneity. The nanowire networks were self-supporting and could be easily handled as electrodes in electrochemical cells or other devices. The electrochemically active surface area of the networks increased systematically with increasing the wire diameter. They showed a very stable performance during 200 CV cycles of methanol oxidation reactions, with the peak current density reaching up to 200 times higher than that of a flat reference electrode, with only a 5% drop in the peak current density. The Au nanowire networks proved to be excellent model systems for investigation of the performance of porous catalysts and very promising nanosystems for application in direct alcohol fuel cell catalysts. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 26 Feb 2024 07:05 |
| Letzte Änderung: | 26 Feb 2024 10:43 |
| PPN: | 515810045 |
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