CO Chemisorption on Vicinal Rh(111) Surfaces Studied with a Curved Crystal
(2020) In Journal of Physical Chemistry C 124(17). p.9305-9313- Abstract
Curved crystal surfaces enable the systematic and accurate comparison of physical and chemical processes for a full set of vicinal crystal planes, which are probed in the very same environment. Here, we examine the early stages of the CO chemisorption on vicinal Rh(111) surfaces using a curved Rh crystal that exposes a smoothly variable density of {100} (A-type) and {111} (B-type) steps. We readily identify and quantify step and terrace species by resolving their respective core-level lines using X-ray photoelectron spectroscopy at different locations on the curved surface. Uptake experiments show similar sticking probabilities at all surface planes, subtle asymmetries between A- and B-type steps, and significantly lower saturation... (More)
Curved crystal surfaces enable the systematic and accurate comparison of physical and chemical processes for a full set of vicinal crystal planes, which are probed in the very same environment. Here, we examine the early stages of the CO chemisorption on vicinal Rh(111) surfaces using a curved Rh crystal that exposes a smoothly variable density of {100} (A-type) and {111} (B-type) steps. We readily identify and quantify step and terrace species by resolving their respective core-level lines using X-ray photoelectron spectroscopy at different locations on the curved surface. Uptake experiments show similar sticking probabilities at all surface planes, subtle asymmetries between A- and B-type steps, and significantly lower saturation coverage at densely stepped surfaces as compared to the (111) plane. The analysis of the C 1s intensity variation across the curved sample allows us to discuss the adsorption geometry around the step edge.
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- author
- Garcia-Martinez, Fernando ; Schiller, Frederik ; Blomberg, Sara LU ; Shipilin, Mikhail LU ; Merte, Lindsay R. LU ; Gustafson, Johan LU ; Lundgren, Edvin LU and Ortega, J. Enrique
- organization
- publishing date
- 2020-04-30
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physical Chemistry C
- volume
- 124
- issue
- 17
- pages
- 9 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85084812711
- ISSN
- 1932-7447
- DOI
- 10.1021/acs.jpcc.0c00039
- language
- English
- LU publication?
- yes
- id
- f2eeb3a3-52bf-4d2c-889b-35e6ddc594ab
- date added to LUP
- 2020-06-24 11:18:51
- date last changed
- 2023-12-19 00:10:48
@article{f2eeb3a3-52bf-4d2c-889b-35e6ddc594ab, abstract = {{<p>Curved crystal surfaces enable the systematic and accurate comparison of physical and chemical processes for a full set of vicinal crystal planes, which are probed in the very same environment. Here, we examine the early stages of the CO chemisorption on vicinal Rh(111) surfaces using a curved Rh crystal that exposes a smoothly variable density of {100} (A-type) and {111} (B-type) steps. We readily identify and quantify step and terrace species by resolving their respective core-level lines using X-ray photoelectron spectroscopy at different locations on the curved surface. Uptake experiments show similar sticking probabilities at all surface planes, subtle asymmetries between A- and B-type steps, and significantly lower saturation coverage at densely stepped surfaces as compared to the (111) plane. The analysis of the C 1s intensity variation across the curved sample allows us to discuss the adsorption geometry around the step edge.</p>}}, author = {{Garcia-Martinez, Fernando and Schiller, Frederik and Blomberg, Sara and Shipilin, Mikhail and Merte, Lindsay R. and Gustafson, Johan and Lundgren, Edvin and Ortega, J. Enrique}}, issn = {{1932-7447}}, language = {{eng}}, month = {{04}}, number = {{17}}, pages = {{9305--9313}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of Physical Chemistry C}}, title = {{CO Chemisorption on Vicinal Rh(111) Surfaces Studied with a Curved Crystal}}, url = {{http://dx.doi.org/10.1021/acs.jpcc.0c00039}}, doi = {{10.1021/acs.jpcc.0c00039}}, volume = {{124}}, year = {{2020}}, }