Experimental and theoretical study of oxygen adsorption structures on Ag(111)
Schnadt, Joachim LU
; Knudsen, Jan
; Hu, Xiao Liang
; Michaelides, Angelos
; Vang, Ronnie T.
; Reuter, Karsten
; Li, Zheshen
; Laegsgaard, Erik
; Scheffler, Matthias
and Besenbacher, Flemming
(2009)
In Physical Review B (Condensed Matter and Materials Physics)
80(7).
- Abstract
- The oxidized Ag(111) surface has been studied by a combination of experimental and theoretical methods, scanning tunneling microscopy, x-ray photoelectron spectroscopy, and density functional theory. A large variety of different surface structures is found, depending on the detailed preparation conditions. The observed structures fall into four classes: (a) individually chemisorbed atomic oxygen atoms, (b) three different oxygen overlayer structures, including the well-known p(4x4) phase, formed from the same Ag-6 and Ag-10 building blocks, (c) a c(4x8) structure not previously observed, and (d) at higher oxygen coverages structures characterized by stripes along the high-symmetry directions of the Ag(111) substrate. Our analysis provides... (More)
- The oxidized Ag(111) surface has been studied by a combination of experimental and theoretical methods, scanning tunneling microscopy, x-ray photoelectron spectroscopy, and density functional theory. A large variety of different surface structures is found, depending on the detailed preparation conditions. The observed structures fall into four classes: (a) individually chemisorbed atomic oxygen atoms, (b) three different oxygen overlayer structures, including the well-known p(4x4) phase, formed from the same Ag-6 and Ag-10 building blocks, (c) a c(4x8) structure not previously observed, and (d) at higher oxygen coverages structures characterized by stripes along the high-symmetry directions of the Ag(111) substrate. Our analysis provides a detailed explanation of the atomic-scale geometry of the Ag-6/Ag-10 building block structures and the c(4x8) and stripe structures are discussed in detail. The observation of many different and co-existing structures implies that the O/Ag(111) system is characterized by a significantly larger degree of complexity than previously anticipated, and this will impact our understanding of oxidation catalysis processes on Ag catalysts. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1474968
- author
- Schnadt, Joachim
LU
; Knudsen, Jan
; Hu, Xiao Liang
; Michaelides, Angelos
; Vang, Ronnie T.
; Reuter, Karsten
; Li, Zheshen
; Laegsgaard, Erik
; Scheffler, Matthias
and Besenbacher, Flemming
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 80
- issue
- 7
- publisher
- American Physical Society
- external identifiers
-
- wos:000269638900096
- scopus:70349121323
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.80.075424
- language
- English
- LU publication?
- yes
- id
- 6297001f-dd47-431f-baad-08410cc150e4 (old id 1474968)
- date added to LUP
- 2016-04-01 14:43:20
- date last changed
- 2022-04-06 20:07:49
@article{6297001f-dd47-431f-baad-08410cc150e4,
abstract = {{The oxidized Ag(111) surface has been studied by a combination of experimental and theoretical methods, scanning tunneling microscopy, x-ray photoelectron spectroscopy, and density functional theory. A large variety of different surface structures is found, depending on the detailed preparation conditions. The observed structures fall into four classes: (a) individually chemisorbed atomic oxygen atoms, (b) three different oxygen overlayer structures, including the well-known p(4x4) phase, formed from the same Ag-6 and Ag-10 building blocks, (c) a c(4x8) structure not previously observed, and (d) at higher oxygen coverages structures characterized by stripes along the high-symmetry directions of the Ag(111) substrate. Our analysis provides a detailed explanation of the atomic-scale geometry of the Ag-6/Ag-10 building block structures and the c(4x8) and stripe structures are discussed in detail. The observation of many different and co-existing structures implies that the O/Ag(111) system is characterized by a significantly larger degree of complexity than previously anticipated, and this will impact our understanding of oxidation catalysis processes on Ag catalysts.}},
author = {{Schnadt, Joachim and Knudsen, Jan and Hu, Xiao Liang and Michaelides, Angelos and Vang, Ronnie T. and Reuter, Karsten and Li, Zheshen and Laegsgaard, Erik and Scheffler, Matthias and Besenbacher, Flemming}},
issn = {{1098-0121}},
language = {{eng}},
number = {{7}},
publisher = {{American Physical Society}},
series = {{Physical Review B (Condensed Matter and Materials Physics)}},
title = {{Experimental and theoretical study of oxygen adsorption structures on Ag(111)}},
url = {{http://dx.doi.org/10.1103/PhysRevB.80.075424}},
doi = {{10.1103/PhysRevB.80.075424}},
volume = {{80}},
year = {{2009}},
}