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ZnO nanowire networks as photoanode model systems for photoelectrochemical applications

Movsesyan, Liana ; Maijenburg, Albert Wouter ; Goethals, Noel ; Sigle, Wilfried ; Spende, Anne ; Yang, Florent ; Kaiser, Bernhard ; Jaegermann, Wolfram ; Park, Sun-Young ; Mul, Guido ; Trautmann, Christina ; Toimil-Molares, Maria Eugenia (2018)
ZnO nanowire networks as photoanode model systems for photoelectrochemical applications.
In: Nanomaterials, 8 (9)
doi: 10.3390/nano8090693
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

In this work, the fabrication of zinc oxide (ZnO) nanowire networks is presented. By combining ion-track technology, electrochemical deposition, and atomic layer deposition, hierarchical and self-supporting three-dimensional (3D) networks of pure ZnO- and TiO₂-coated ZnO nanowires were synthesized. Analysis by means of high-resolution transmission electron microscopy revealed a highly crystalline structure of the electrodeposited ZnO wires and the anatase phase of the TiO₂ coating. In photoelectrochemical measurements, the ZnO and ZnO/TiO₂ nanowire networks, used as anodes, generated higher photocurrents compared to those produced by their film counterparts. The ZnO/TiO₂ nanowire network exhibited the highest photocurrents. However, the protection by the TiO₂ coatings against chemical corrosion still needs improvement. The one-dimensionality of the nanowires and the large electrolyte-accessible area make these 3D networks promising photoelectrodes, due to the improved transport properties of photogenerated charge carriers and faster redox reactions at the surface. Moreover, they can find further applications in e.g., sensing, catalytical, and piezoelectric devices.

Typ des Eintrags: Artikel
Erschienen: 2018
Autor(en): Movsesyan, Liana ; Maijenburg, Albert Wouter ; Goethals, Noel ; Sigle, Wilfried ; Spende, Anne ; Yang, Florent ; Kaiser, Bernhard ; Jaegermann, Wolfram ; Park, Sun-Young ; Mul, Guido ; Trautmann, Christina ; Toimil-Molares, Maria Eugenia
Art des Eintrags: Bibliographie
Titel: ZnO nanowire networks as photoanode model systems for photoelectrochemical applications
Sprache: Englisch
Publikationsjahr: 2018
Ort: Basel
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Nanomaterials
Jahrgang/Volume einer Zeitschrift: 8
(Heft-)Nummer: 9
Kollation: 14 Seiten
DOI: 10.3390/nano8090693
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Kurzbeschreibung (Abstract):

In this work, the fabrication of zinc oxide (ZnO) nanowire networks is presented. By combining ion-track technology, electrochemical deposition, and atomic layer deposition, hierarchical and self-supporting three-dimensional (3D) networks of pure ZnO- and TiO₂-coated ZnO nanowires were synthesized. Analysis by means of high-resolution transmission electron microscopy revealed a highly crystalline structure of the electrodeposited ZnO wires and the anatase phase of the TiO₂ coating. In photoelectrochemical measurements, the ZnO and ZnO/TiO₂ nanowire networks, used as anodes, generated higher photocurrents compared to those produced by their film counterparts. The ZnO/TiO₂ nanowire network exhibited the highest photocurrents. However, the protection by the TiO₂ coatings against chemical corrosion still needs improvement. The one-dimensionality of the nanowires and the large electrolyte-accessible area make these 3D networks promising photoelectrodes, due to the improved transport properties of photogenerated charge carriers and faster redox reactions at the surface. Moreover, they can find further applications in e.g., sensing, catalytical, and piezoelectric devices.

Freie Schlagworte: etched ion-track membrane, electrodeposition, nanowire network, core-shell nanowires, ZnO, TiO₂, photoelectrochemical applications, water splitting
Zusätzliche Informationen:

This article belongs to the Special Issue Synthesis and Characterization of Nanowires

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie
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 Oberflächenforschung
Hinterlegungsdatum: 17 Jan 2024 09:23
Letzte Änderung: 07 Mär 2024 07:44
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