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Oxygen induced faceting of Cu(911)

Hagman, Benjamin LU ; Schaefer, Andreas LU ; Edström, Helen LU ; Allmen, Kim von LU orcid and Gustafson, Johan LU (2022) In Surface Science 715.
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... (More)

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
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Copper, Faceting, SXRD, Vicinal surface
in
Surface Science
volume
715
article number
121933
publisher
Elsevier
external identifiers
  • scopus:85114711291
ISSN
0039-6028
DOI
10.1016/j.susc.2021.121933
language
English
LU publication?
yes
id
244c32fc-198a-4ab8-be4e-de841650b866
date added to LUP
2021-10-08 12:48:26
date last changed
2022-04-19 08:44:16
@article{244c32fc-198a-4ab8-be4e-de841650b866,
  abstract     = {{<p>The oxidation of copper is essential for several fields, such as corrosion, catalytic methanol synthesis, and CO<sub>2</sub> 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 O<sub>2</sub> 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<sup>−10</sup>–10<sup>−5</sup> mbar O<sub>2</sub>. The (410) and (401) facets are present until the surface is further oxidized to Cu<sub>2</sub>O, at 10<sup>−5</sup> 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.</p>}},
  author       = {{Hagman, Benjamin and Schaefer, Andreas and Edström, Helen and Allmen, Kim von and Gustafson, Johan}},
  issn         = {{0039-6028}},
  keywords     = {{Copper; Faceting; SXRD; Vicinal surface}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Surface Science}},
  title        = {{Oxygen induced faceting of Cu(911)}},
  url          = {{http://dx.doi.org/10.1016/j.susc.2021.121933}},
  doi          = {{10.1016/j.susc.2021.121933}},
  volume       = {{715}},
  year         = {{2022}},
}