Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Haschke S, Pankin D, Mikhailovskii V, Barr M, Both Engel A, Manshina A, Bachmann J
Zeitschrift: Beilstein Journal of Nanotechnology
Verlag: BEILSTEIN-INSTITUT
Jahr der Veröffentlichung: 2019
Band: 10
Seitenbereich: 157-167
ISSN: 2190-4286


Abstract

For the oxidation of water to dioxygen, oxide-covered ruthenium metal is known as the most efficient catalyst, however, with limited stability. Herein, we present a strategy for incorporating a Ru/C composite onto a novel nanoporous electrode surface with low noble metal loading and improved stability. The Ru/C is coated on the pore walls of anodic alumina templates in a one-step laser-induced deposition method from Ru-3(CO)(12) solutions. Scanning electron microscopy proves the presence of a continuous Ru/C layer along the inner pore walls. The amorphous material consists of metallic Ru incorporated in a carbonaceous C matrix as shown by X-ray diffraction combined with Raman and X-ray photoelectron spectroscopies. These porous electrodes reveal enhanced stability during water oxidation as compared to planar samples at pH 4. Finally, their electrocatalytic performance depends on the geometric parameters and is optimized with 13 mu m pore length, which yields 2.6 mA cm(-2), or 49 A g(-1), at eta = 0.20 V.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bachmann, Julien Prof.
Lehrstuhl für Chemistry of thin film materials
Barr, Maissa Dr.
Lehrstuhl für Chemistry of thin film materials
Both Engel, Adriana Dr.
Lehrstuhl für Anorganische und Allgemeine Chemie
Haschke, Sandra
Lehrstuhl für Chemistry of thin film materials


Einrichtungen weiterer Autorinnen und Autoren

Saint Petersburg State University


Zitierweisen

APA:
Haschke, S., Pankin, D., Mikhailovskii, V., Barr, M., Both Engel, A., Manshina, A., & Bachmann, J. (2019). Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability. Beilstein Journal of Nanotechnology, 10, 157-167. https://dx.doi.org/10.3762/bjnano.10.15

MLA:
Haschke, Sandra, et al. "Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability." Beilstein Journal of Nanotechnology 10 (2019): 157-167.

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Zuletzt aktualisiert 2019-04-02 um 13:53