About: Water interaction with CeO2(1 1 1)/Cu(1 1 1) model catalyst surface

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About: Water interaction with CeO2(1 1 1)/Cu(1 1 1) model catalyst surface Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.cattod.2011.05.032
Description	Interaction of water with fully oxidized and partially reduced CeO2(1 1 1) thin film model catalyst grown on a Cu(1 1 1) surface was investigated by photoelectron spectroscopy (PES), scanning tunneling microscopy (STM) and temperature programmed desorption (TPD). On the stoichiometric surface water adsorbs molecularly at low temperatures ({= 120 K) while on the reduced surface the adsorption is partially dissociative with formation of OH groups. STM indicates no morphology variation and a very sensitive Ce 4d-4f resonant photoelectron spectroscopy (RPES) no noticeable change of the oxidation state of ceria upon water adsorption and subsequent complete desorption. Formation of co-adsorbed phase of residual water with OH during molecular water desorption, on the other hand, leads to a substantial resonance of the Ce3+ photoemission state around 170 K. We propose that this behaviour indicating ceria reduction is in this case an electronic effect of the Ce 4f charge accumulation and Ce 5d charge depletion. Interaction of water with fully oxidized and partially reduced CeO2(1 1 1) thin film model catalyst grown on a Cu(1 1 1) surface was investigated by photoelectron spectroscopy (PES), scanning tunneling microscopy (STM) and temperature programmed desorption (TPD). On the stoichiometric surface water adsorbs molecularly at low temperatures ({= 120 K) while on the reduced surface the adsorption is partially dissociative with formation of OH groups. STM indicates no morphology variation and a very sensitive Ce 4d-4f resonant photoelectron spectroscopy (RPES) no noticeable change of the oxidation state of ceria upon water adsorption and subsequent complete desorption. Formation of co-adsorbed phase of residual water with OH during molecular water desorption, on the other hand, leads to a substantial resonance of the Ce3+ photoemission state around 170 K. We propose that this behaviour indicating ceria reduction is in this case an electronic effect of the Ce 4f charge accumulation and Ce 5d charge depletion. (en)
Title	Water interaction with CeO2(1 1 1)/Cu(1 1 1) model catalyst surface Water interaction with CeO2(1 1 1)/Cu(1 1 1) model catalyst surface (en)
skos:prefLabel	Water interaction with CeO2(1 1 1)/Cu(1 1 1) model catalyst surface Water interaction with CeO2(1 1 1)/Cu(1 1 1) model catalyst surface (en)
skos:notation	RIV/00216208:11320/12:10129681!RIV13-GA0-11320___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GAP204/11/1183), P(GD202/09/H041), P(LA08022), P(LC06058), S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Dvořák, Filip Mysliveček, Josef Tsud, Nataliya Matolínová, Iva Johánek, Viktor Matolín, Vladimír Šmíd, Břetislav Václavů, Michal Stetsovych, Oleksandr
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	180727
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10129681
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	TPD; STM; Photoelectron spectroscopy; Hydroxyl; Water adsorption; Cerium oxide (en)
http://linked.open.../riv/klicoveSlovo	Cerium oxide Photoelectron spectroscopy TPD STM Hydroxyl Water adsorption
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[27E16118EBF3]
http://linked.open...i/riv/nazevZdroje	Catalysis Today
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	9 (xsd:int)
http://linked.open...cetTvurcuVysledku	11 (xsd:int)
http://linked.open...vavai/riv/projekt	Participation of Czech scientists in synchrotron radiation experiments at Elettra Metal atoms on model surfaces of ceria Physics of nanostructures Center of synchrotron radiation materials study
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	181
http://linked.open...iv/tvurceVysledku	Dvořák, Filip Johánek, Viktor Matolín, Vladimír Matolínová, Iva Mysliveček, Josef Prince, K. C. Skala, T. Stetsovych, Oleksandr Tsud, Nataliya Šmíd, Břetislav Václavů, Michal
http://linked.open...ain/vavai/riv/wos	000299315100020
issn	0920-5861
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.cattod.2011.05.032
http://localhost/t...ganizacniJednotka	11320

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