Water Chemistry on Model Ceria and Pt/Ceria Catalysts
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10130855" target="_blank" >RIV/00216208:11320/12:10130855 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/jp302229x" target="_blank" >http://dx.doi.org/10.1021/jp302229x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jp302229x" target="_blank" >10.1021/jp302229x</a>
Alternative languages
Result language
angličtina
Original language name
Water Chemistry on Model Ceria and Pt/Ceria Catalysts
Original language description
We have studied the interaction of water with stoichiometric CeO2(111)/Cu(111), partially reduced CeO2-x/Cu(111), and Pt/CeO2/Cu(111) model catalysts by means of synchrotron-radiation photoelectron spectroscopy (SRPES), resonant photoemission spectroscopy (RPES) at the Ce 4d edge, infrared reflection absorption spectroscopy (IRAS), and density functional (DF) calculations. The principal species formed during adsorption of water at 160 K on CeO2(111) films is chemisorbed molecular water. On the surface of CeO2-x water partially dissociates yielding hydroxyl groups. By use of core-level PES, differentiation between chemisorbed water and hydroxyl groups is complicated by the overlap of the corresponding spectral features. Nevertheless, we determined threecharacteristic indicators for OH groups on ceria: (i) the presence of 1 pi and 3 sigma states in valence band (VB) PES; (ii) an increase of the binding energy (BE) separation between the O 1s spectral components of lattice oxygen and OH/
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)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
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Volume of the periodical
116
Issue of the periodical within the volume
22
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
12103-12113
UT code for WoS article
000304888700030
EID of the result in the Scopus database
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