Surface sites on Pt-CeO2 mixed oxide catalysts probed by CO adsorption: a synchrotron radiation photoelectron spectroscopy study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10289714" target="_blank" >RIV/00216208:11320/14:10289714 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c4cp03346a" target="_blank" >http://dx.doi.org/10.1039/c4cp03346a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c4cp03346a" target="_blank" >10.1039/c4cp03346a</a>
Alternative languages
Result language
angličtina
Original language name
Surface sites on Pt-CeO2 mixed oxide catalysts probed by CO adsorption: a synchrotron radiation photoelectron spectroscopy study
Original language description
By means of synchrotron radiation photoemission spectroscopy, we have investigated Pt-CeO2 mixed oxide films prepared on CeO2(111)/Cu(111). Using CO molecules as a probe, we associate the corresponding surface species with specific surface sites. This allows us to identify the changes in the composition and morphology of Pt-CeO2 mixed oxide films caused by annealing in an ultrahigh vacuum. Specifically, two peaks in C 1s spectra at 289.4 and 291.2 eV, associated with tridentate and bidentate carbonate species, are formed on the nanostructured stoichiometric CeO2 film. The peak at 290.5-291.0 eV in the C 1s spectra indicates the onset of restructuring, i.e. coarsening, of the Pt-CeO2 film. This peak is associated with a carbonate species formed near anoxygen vacancy. The onset of cerium oxide reduction is indicated by the peak at 287.8-288.0 eV associated with carbonite species formed near Ce3+ cations. The development of surface species on the Pt-CeO2 mixed oxides suggests that restru
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Chemistry Chemical Physics
ISSN
1463-9076
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
45
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
24747-24754
UT code for WoS article
000344464800014
EID of the result in the Scopus database
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