Hydrogen activation on Pt-Sn nanoalloys supported on mixed Sn-Ce oxide films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10288991" target="_blank" >RIV/00216208:11320/14:10288991 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c4cp01632g" target="_blank" >http://dx.doi.org/10.1039/c4cp01632g</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c4cp01632g" target="_blank" >10.1039/c4cp01632g</a>
Alternative languages
Result language
angličtina
Original language name
Hydrogen activation on Pt-Sn nanoalloys supported on mixed Sn-Ce oxide films
Original language description
We have studied the interaction of H-2 with Pt-Sn nanoalloys supported on Sn-Ce mixed oxide films of different composition by means of synchrotron radiation photoelectron spectroscopy and resonant photoemission spectroscopy. The model catalysts are prepared in a three step procedure that involves (i) the preparation of well-ordered CeO2(111) films on Cu(111) followed by subsequent physical vapor deposition of (ii) metallic Sn and (iii) metallic Pt. The formation of mixed Sn-Ce oxide is accompanied by partial reduction of Ce4+ cations to Ce3+. Pt deposition leads to the formation of Pt-Sn nanoalloys accompanied by the partial re-oxidation of Ce3+ to Ce4+. Subsequent annealing promotes further Pt-Sn alloy formation at expense of the Sn content in the Sn-Ce mixed oxide. Adsorption of H-2 on Pt-Sn/Sn-Ce-O at 150 K followed by stepwise annealing results in reversible reduction of Ce cations caused by spillover of dissociated hydrogen between 150 and 300 K. Above 500 K, annealing of Pt-Sn/Sn
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
26
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
13209-13219
UT code for WoS article
000337785400024
EID of the result in the Scopus database
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