RHEED and XPS Study of Tin Interaction with CeO2 (111) Surface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109320" target="_blank" >RIV/00216208:11320/11:10109320 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.mff.cuni.cz/veda/konference/wds/proc/pdf11/WDS11_328_f5_Beran.pdf" target="_blank" >http://www.mff.cuni.cz/veda/konference/wds/proc/pdf11/WDS11_328_f5_Beran.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

RHEED and XPS Study of Tin Interaction with CeO2 (111) Surface

Popis výsledku v původním jazyce

In this study, we present our results of tin interaction with CeO2 (111) surface supported by copper (111) single crystal. The system crystallography was characterized by RHEED (Reflection High-Energy Electron Diffraction), while the stoichiometry was investigated by XPS (X-ray Photoelectron Spectroscopy). The ceria thin film was prepared by reactive evaporation of metallic cerium in oxygen atmosphere. Deposition of low amount of metallic tin onto the ceria substrate led to the formation of polycrystalline layer of tin oxide (SnOx). The oxidation of tin is made possible by taking the oxygen from ceria surface, as indicated by evolution of peaks in XPS spectra belonging to Ce3+ state. Subsequent deposition of tin led to the coexistence of two phases onthe surface-small epitaxial clusters of metallic tin with (010) crystallographic plane parallel to the surface and polycrystalline tin oxide. Annealing of the sample up to 250 oC in oxygen atmosphere resulted in the oxidation of metallic

Název v anglickém jazyce

RHEED and XPS Study of Tin Interaction with CeO2 (111) Surface

Popis výsledku anglicky

In this study, we present our results of tin interaction with CeO2 (111) surface supported by copper (111) single crystal. The system crystallography was characterized by RHEED (Reflection High-Energy Electron Diffraction), while the stoichiometry was investigated by XPS (X-ray Photoelectron Spectroscopy). The ceria thin film was prepared by reactive evaporation of metallic cerium in oxygen atmosphere. Deposition of low amount of metallic tin onto the ceria substrate led to the formation of polycrystalline layer of tin oxide (SnOx). The oxidation of tin is made possible by taking the oxygen from ceria surface, as indicated by evolution of peaks in XPS spectra belonging to Ce3+ state. Subsequent deposition of tin led to the coexistence of two phases onthe surface-small epitaxial clusters of metallic tin with (010) crystallographic plane parallel to the surface and polycrystalline tin oxide. Annealing of the sample up to 250 oC in oxygen atmosphere resulted in the oxidation of metallic

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

WDS'11 Proceedings of Contributed Papers: Part III ? Physics

ISBN

978-80-7378-186-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

155-159

Název nakladatele

Matfyzpress

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

31. 5. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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