Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability
Haschke S, Pankin D, Mikhailovskii V, Barr M, Both Engel A, Manshina A, Bachmann J (2019)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2019
Journal
Publisher: BEILSTEIN-INSTITUT
Book Volume: 10
Pages Range: 157-167
DOI: 10.3762/bjnano.10.15
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.
Authors with CRIS profile
Sandra Haschke
Lehrstuhl für Chemistry of thin film materials
Maissa Barr
Lehrstuhl für Chemistry of thin film materials
Adriana Both Engel
Lehrstuhl für Anorganische und Allgemeine Chemie
Julien Bachmann
Lehrstuhl für Chemistry of thin film materials
Involved external institutions
Russian Federation (RU)How to cite
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://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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