About: Photoemission study of Rh/CeO2/Cu(1 1 1) system-Oxidation state, stability and interaction with adsorbed gases

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About: Photoemission study of Rh/CeO2/Cu(1 1 1) system-Oxidation state, stability and interaction with adsorbed gases Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have studied change of surface oxidation state of cerium oxide affected by Rh deposition, and interaction with gas molecules. Oriented films of CeO2(1 1 1)/Cu(1 1 1) were used as prepared (stoichiometric) as well as reduced by soft Ar+ sputtering. Rhodium was evaporated onto these substrates. Prepared Rh/CeO2 samples were exposed to molecules CO and H2O. We have measured, core level, valence band and resonant photoemission spectra after every experimental step comparing our results of the behaviour of both samples (stoichiometric and reduced before Rh deposition) with regard to oxidation or reduction of the cerium oxide surface. We have demonstrated that resonant spectroscopy represents a good and sensitive tool to observe the, oxidation state of cerium providing tool for the interpretation of catalytic reaction. We have studied change of surface oxidation state of cerium oxide affected by Rh deposition, and interaction with gas molecules. Oriented films of CeO2(1 1 1)/Cu(1 1 1) were used as prepared (stoichiometric) as well as reduced by soft Ar+ sputtering. Rhodium was evaporated onto these substrates. Prepared Rh/CeO2 samples were exposed to molecules CO and H2O. We have measured, core level, valence band and resonant photoemission spectra after every experimental step comparing our results of the behaviour of both samples (stoichiometric and reduced before Rh deposition) with regard to oxidation or reduction of the cerium oxide surface. We have demonstrated that resonant spectroscopy represents a good and sensitive tool to observe the, oxidation state of cerium providing tool for the interpretation of catalytic reaction. (en)
Title	Photoemission study of Rh/CeO2/Cu(1 1 1) system-Oxidation state, stability and interaction with adsorbed gases Photoemission study of Rh/CeO2/Cu(1 1 1) system-Oxidation state, stability and interaction with adsorbed gases (en)
skos:prefLabel	Photoemission study of Rh/CeO2/Cu(1 1 1) system-Oxidation state, stability and interaction with adsorbed gases Photoemission study of Rh/CeO2/Cu(1 1 1) system-Oxidation state, stability and interaction with adsorbed gases (en)
skos:notation	RIV/00216208:11320/10:10071351!RIV11-GA0-11320___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA202/07/0782), S, Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	2-3
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Ševčíková, Klára Zahoranová, Tatiana Tsud, Nataliya Nehasil, Václav Libra, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	278828
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10071351
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	reduction; oxidation; rhodium; cerium oxide; photoelectron spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	cerium oxide rhodium oxidation photoelectron spectroscopy reduction
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[2DA159509988]
http://linked.open...i/riv/nazevZdroje	Journal of Electron Spectroscopy and Related Phenomena
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Reactivity of model catalyst based on CeOx
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	181
http://linked.open...iv/tvurceVysledku	Skála, Tomáš Tsud, Nataliya Nehasil, Václav Libra, Jiří Ševčíková, Klára Zahoranová, Tatiana
http://linked.open...ain/vavai/riv/wos	000281932100029
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0368-2048
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	11320

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