Oxygen induced faceting of Cu(911)

Benjamin Hagman; Andreas Schaefer; Helen Edström; Kim von Allmen; Johan Gustafson

doi:10.1016/j.susc.2021.121933

Oxygen induced faceting of Cu(911)

Benjamin Hagman, Andreas Schaefer, Helen Edström, Kim von Allmen, Johan Gustafson

Synchrotron Radiation Research

Chalmers University of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The oxidation of copper is essential for several fields, such as corrosion, catalytic methanol synthesis, and CO₂ electroreduction. However, the understanding of the oxidation of copper under various conditions is not complete. Here, we study the oxidation of the vicinal Cu(911) surface by O₂ with in-situ Surface X-ray Diffraction. It was found that the surface facets to (410), (401), and (100) which are stable in the parameter range of T = 25–400 °C and p = 10⁻¹⁰–10⁻⁵ mbar O₂. The (410) and (401) facets are present until the surface is further oxidized to Cu₂O, at 10⁻⁵ mbar and above. These results further the knowledge on the oxidation of copper and its surfaces, which may be of importance for a wide range of applications.

Original language	English
Article number	121933
Journal	Surface Science
Volume	715
DOIs	https://doi.org/10.1016/j.susc.2021.121933
Publication status	Published - 2022 Jan

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

Keywords

Copper
Faceting
SXRD
Vicinal surface

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10.1016/j.susc.2021.121933Licence: CC BY-NC-ND

1 Doctoral Thesis (compilation)

Dissociative Adsorption of CO2 on Copper: The Role of Steps
Hagman, B., 2021 Aug 31, Lund: Lund University. 142 p.
Research output: Thesis › Doctoral Thesis (compilation)

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title = "Oxygen induced faceting of Cu(911)",

abstract = "The oxidation of copper is essential for several fields, such as corrosion, catalytic methanol synthesis, and CO2 electroreduction. However, the understanding of the oxidation of copper under various conditions is not complete. Here, we study the oxidation of the vicinal Cu(911) surface by O2 with in-situ Surface X-ray Diffraction. It was found that the surface facets to (410), (401), and (100) which are stable in the parameter range of T = 25–400 °C and p = 10−10–10−5 mbar O2. The (410) and (401) facets are present until the surface is further oxidized to Cu2O, at 10−5 mbar and above. These results further the knowledge on the oxidation of copper and its surfaces, which may be of importance for a wide range of applications.",

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author = "Benjamin Hagman and Andreas Schaefer and Helen Edstr{\"o}m and Allmen, {Kim von} and Johan Gustafson",

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language = "English",

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TY - JOUR

T1 - Oxygen induced faceting of Cu(911)

AU - Hagman, Benjamin

AU - Schaefer, Andreas

AU - Edström, Helen

AU - Allmen, Kim von

AU - Gustafson, Johan

PY - 2022/1

Y1 - 2022/1

N2 - The oxidation of copper is essential for several fields, such as corrosion, catalytic methanol synthesis, and CO2 electroreduction. However, the understanding of the oxidation of copper under various conditions is not complete. Here, we study the oxidation of the vicinal Cu(911) surface by O2 with in-situ Surface X-ray Diffraction. It was found that the surface facets to (410), (401), and (100) which are stable in the parameter range of T = 25–400 °C and p = 10−10–10−5 mbar O2. The (410) and (401) facets are present until the surface is further oxidized to Cu2O, at 10−5 mbar and above. These results further the knowledge on the oxidation of copper and its surfaces, which may be of importance for a wide range of applications.

AB - The oxidation of copper is essential for several fields, such as corrosion, catalytic methanol synthesis, and CO2 electroreduction. However, the understanding of the oxidation of copper under various conditions is not complete. Here, we study the oxidation of the vicinal Cu(911) surface by O2 with in-situ Surface X-ray Diffraction. It was found that the surface facets to (410), (401), and (100) which are stable in the parameter range of T = 25–400 °C and p = 10−10–10−5 mbar O2. The (410) and (401) facets are present until the surface is further oxidized to Cu2O, at 10−5 mbar and above. These results further the knowledge on the oxidation of copper and its surfaces, which may be of importance for a wide range of applications.

KW - Copper

KW - Faceting

KW - SXRD

KW - Vicinal surface

U2 - 10.1016/j.susc.2021.121933

DO - 10.1016/j.susc.2021.121933

M3 - Article

AN - SCOPUS:85114711291

VL - 715

JO - Surface Science

JF - Surface Science

SN - 0039-6028

M1 - 121933

ER -

Oxygen induced faceting of Cu(911)

Abstract

Subject classification (UKÄ)

Keywords

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Research output

Dissociative Adsorption of CO2 on Copper: The Role of Steps

Cite this