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

Sandra Haschke, Dmitrii Pankin, Vladimir Mikhailovskii, Maïssa K.S. Barr, Adriana Both-Engel, Alina Manshina, Julien Bachmann

Research output

1 Citation (Scopus)

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 Ru3(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 μm pore length, which yields 2.6 mA cm-2, or 49 A g-1, at η = 0.20 V.

Original languageEnglish
Pages (from-to)157-167
Number of pages11
JournalBeilstein Journal of Nanotechnology
Volume10
Issue number1
DOIs
Publication statusPublished - 2019

Fingerprint

corrosion
Corrosion
porosity
Oxidation
oxidation
Electrodes
electrodes
Water
Lasers
water
lasers
Ruthenium
Aluminum Oxide
amorphous materials
Carbon Monoxide
Precious metals
noble metals
Oxides
ruthenium
x rays

Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

Cite this

Haschke, Sandra ; Pankin, Dmitrii ; Mikhailovskii, Vladimir ; Barr, Maïssa K.S. ; Both-Engel, Adriana ; Manshina, Alina ; Bachmann, Julien. / Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability. In: Beilstein Journal of Nanotechnology. 2019 ; Vol. 10, No. 1. pp. 157-167.
@article{c1dad472bd444195ae878c33d5003236,
title = "Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability",
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 Ru3(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 μm pore length, which yields 2.6 mA cm-2, or 49 A g-1, at η = 0.20 V.",
keywords = "Electrochemistry, Nanostructures, Noble metals, Ruthenium catalyst, Water splitting",
author = "Sandra Haschke and Dmitrii Pankin and Vladimir Mikhailovskii and Barr, {Ma{\"i}ssa K.S.} and Adriana Both-Engel and Alina Manshina and Julien Bachmann",
year = "2019",
doi = "10.3762/bjnano.10.15",
language = "English",
volume = "10",
pages = "157--167",
journal = "Beilstein Journal of Nanotechnology",
issn = "2190-4286",
publisher = "Beilstein-Institut Zur Forderung der Chemischen Wissenschaften",
number = "1",

}

Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability. / Haschke, Sandra; Pankin, Dmitrii; Mikhailovskii, Vladimir; Barr, Maïssa K.S.; Both-Engel, Adriana; Manshina, Alina; Bachmann, Julien.

In: Beilstein Journal of Nanotechnology, Vol. 10, No. 1, 2019, p. 157-167.

Research output

TY - JOUR

T1 - Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability

AU - Haschke, Sandra

AU - Pankin, Dmitrii

AU - Mikhailovskii, Vladimir

AU - Barr, Maïssa K.S.

AU - Both-Engel, Adriana

AU - Manshina, Alina

AU - Bachmann, Julien

PY - 2019

Y1 - 2019

N2 - 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 Ru3(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 μm pore length, which yields 2.6 mA cm-2, or 49 A g-1, at η = 0.20 V.

AB - 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 Ru3(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 μm pore length, which yields 2.6 mA cm-2, or 49 A g-1, at η = 0.20 V.

KW - Electrochemistry

KW - Nanostructures

KW - Noble metals

KW - Ruthenium catalyst

KW - Water splitting

UR - http://www.scopus.com/inward/record.url?scp=85060169897&partnerID=8YFLogxK

U2 - 10.3762/bjnano.10.15

DO - 10.3762/bjnano.10.15

M3 - Article

AN - SCOPUS:85060169897

VL - 10

SP - 157

EP - 167

JO - Beilstein Journal of Nanotechnology

JF - Beilstein Journal of Nanotechnology

SN - 2190-4286

IS - 1

ER -