About: Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1088/0953-8984/23/21/215002
Description	Submonolayer coverage of Sn on a Pt(110) surface was studied by photoemission and low-energy electron diffraction. Deposition of less than 0.6 ML at 300 K gives rise to a c(2 x 2) surface reconstruction with weak diffraction spots at the very beginning of growth, and no other LEED patterns were found at this temperature. A new (4 x 1) Sn/Pt(110) surface structure was observed after flashing to 570 K a coverage of 0.64 ML. The total Sn coverage decreased to 0.58 ML after flashing as some of the atoms diffused into deeper layers. Different Sn phases were identified on the (4 x 1) Sn/Pt(110) surface: two types of surface Sn atoms in different adsorption sites, a subsurface Sn-Pt intermetallic layer and Sn-Pt surface islands. To investigate chemical reactivity, 0.25 ML Sn/Pt(110) and 0.58 ML (4 x 1) Sn/Pt(110) surfaces were exposed to 1000 L of O(2) at 300 K. Analyses of the photoemission data provide evidence for the formation of tin oxide. The interaction with oxygen of the two surfaces is similar, independent of surface structure and the composition of the subsurface layers. The Sn concentration in the interface intermetallic layer is the main factor which influences the oxygen adsorption. Submonolayer coverage of Sn on a Pt(110) surface was studied by photoemission and low-energy electron diffraction. Deposition of less than 0.6 ML at 300 K gives rise to a c(2 x 2) surface reconstruction with weak diffraction spots at the very beginning of growth, and no other LEED patterns were found at this temperature. A new (4 x 1) Sn/Pt(110) surface structure was observed after flashing to 570 K a coverage of 0.64 ML. The total Sn coverage decreased to 0.58 ML after flashing as some of the atoms diffused into deeper layers. Different Sn phases were identified on the (4 x 1) Sn/Pt(110) surface: two types of surface Sn atoms in different adsorption sites, a subsurface Sn-Pt intermetallic layer and Sn-Pt surface islands. To investigate chemical reactivity, 0.25 ML Sn/Pt(110) and 0.58 ML (4 x 1) Sn/Pt(110) surfaces were exposed to 1000 L of O(2) at 300 K. Analyses of the photoemission data provide evidence for the formation of tin oxide. The interaction with oxygen of the two surfaces is similar, independent of surface structure and the composition of the subsurface layers. The Sn concentration in the interface intermetallic layer is the main factor which influences the oxygen adsorption. (en)
Title	Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption (en)
skos:prefLabel	Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption (en)
skos:notation	RIV/00216208:11320/11:10108227!RIV12-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
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	2012
http://linked.open...aciTvurceVysledku	Veltruská, Kateřina Tsud, Nataliya Škoda, Michal Matolín, Vladimír
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	230138
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10108227
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	and insulator surfaces; semiconductor; Clean metal; Structure of clean surfaces (and surface reconstruction); geometry); Adsorbate structure (binding sites (en)
http://linked.open.../riv/klicoveSlovo	Structure of clean surfaces (and surface reconstruction) Adsorbate structure (binding sites Clean metal and insulator surfaces geometry) semiconductor
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[AFE1FA2CB345]
http://linked.open...i/riv/nazevZdroje	Journal of Physics Condensed Matter
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (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	2011
http://linked.open...v/svazekPeriodika	23
http://linked.open...iv/tvurceVysledku	Matolín, Vladimír Prince, K. C. Skala, T. Tsud, Nataliya Škoda, Michal Veltruská, Kateřina
http://linked.open...ain/vavai/riv/wos	000290476700003
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0953-8984
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0953-8984/23/21/215002
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption Sn/Pt(110) bimetallic surfaces: formation and oxygen adsorption

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