File(s) not publicly available
CO adsorption on the model catalyst Pd/CeO2-x(111)/Rh(111)
journal contribution
posted on 2023-06-07, 20:36 authored by E L Wilson, Qiao ChenQiao Chen, Wendy BrownWendy Brown, G ThorntonX-ray photoelectron spectroscopy (XPS) has been used to investigate the stoichiometry of CeO2-x(111) ultrathin films grown on Rh(111), as well as the modification of the average Ce oxidation state by Pd and CO at room temperature. The stoichiometry of three-layer CeO2(111) has been varied between CeO1.91 and CeO1.61 by altering the oxygen pressure during Ce deposition. Pd deposition induces a change in the Cc oxidation state that is highly dependent on the initial stoichiometry of the CeO2-x films. The difference in behavior Of CeO2-x thin films with different oxidation states is ascribed to the presence of a Ce2O3(0001) termination of the more reduced thin films. CO adsorbs only in the presence of Pd, independent of the stoichiometry of the original film, without changing the oxidation state of the CeO2-x thin film.
History
Publication status
- Published
Journal
Journal of Physical Chemistry CISSN
1932-7447Publisher
American Chemical SocietyExternal DOI
Issue
38Volume
111Page range
14215-14222Department affiliated with
- Chemistry Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC