About: A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Cerium 4f level occupation determines the properties of cerium oxide based catalysts in a significant way. Photoelectron spectroscopy is a powerful tool for investigating Ce 4f states, and there are many spectroscopic data showing different 4f configurations using Ce 3d spectra. Resonance spectroscopy permits the determination of 4f state occupation in ceria based compounds with very high sensitivity. In this work the Ce 4f level of nanosized cerium oxide particles was investigated with the use of resonant photoelectron spectroscopy in the Ce 4d-4f photoabsorption region at photon energies hny around 121.5 and 124.5 eV. A strong interaction of ceria with different additives, e.g. Pd and Sn, led to a partial Ce4 Ce3 transition that was observed as a significant resonance enhancement of 4f photoemission intensity. Increases of the CO oxidation catalytic activity were observed simultaneously. Cerium 4f level occupation determines the properties of cerium oxide based catalysts in a significant way. Photoelectron spectroscopy is a powerful tool for investigating Ce 4f states, and there are many spectroscopic data showing different 4f configurations using Ce 3d spectra. Resonance spectroscopy permits the determination of 4f state occupation in ceria based compounds with very high sensitivity. In this work the Ce 4f level of nanosized cerium oxide particles was investigated with the use of resonant photoelectron spectroscopy in the Ce 4d-4f photoabsorption region at photon energies hny around 121.5 and 124.5 eV. A strong interaction of ceria with different additives, e.g. Pd and Sn, led to a partial Ce4 Ce3 transition that was observed as a significant resonance enhancement of 4f photoemission intensity. Increases of the CO oxidation catalytic activity were observed simultaneously. (en)
Title	A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) (en)
skos:prefLabel	A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) (en)
skos:notation	RIV/00216208:11320/09:00206633!RIV10-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LA08022), P(LC06058), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Matolínová, Iva Matolín, Vladimír Sedláček, Libor
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	301546
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/09:00206633
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	resonant; photoemission; applied; cerium; oxide; based; nanocrystals; 215706 (en)
http://linked.open.../riv/klicoveSlovo	cerium 215706 nanocrystals oxide applied photoemission resonant based
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[4202A25BDAC0]
http://linked.open...i/riv/nazevZdroje	Nanotechnology
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Participation of Czech scientists in synchrotron radiation experiments at Elettra Center of synchrotron radiation materials study
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	20
http://linked.open...iv/tvurceVysledku	Matolín, Vladimír Matolínová, Iva Prince, K. C. Skála, T. Sedláček, Libor
http://linked.open...ain/vavai/riv/wos	000265815600024
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0957-4484
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706) A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706)

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