About: Investigation of the Ti/MgCl2 interface on a Si(111) 7 x 7 substrate

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1063/1.4727760
Description	Photoelectron spectroscopy with synchrotron radiation, low energy electron diffraction, and ion-scattering spectroscopy were used in order to study the Ti/MgCl2 interface grown on an atomically clean Si(111) 7 x 7 substrate. A series of high resolution spectra after deposition of a thick MgCl2 layer, step by step deposition of Ti and gradual annealing, indicated a very reactive interface even at room temperature. Strong interaction between the incoming Ti atoms and the MgCl2 layer, leads to the formation of Ti2+ and Ti4+ oxidation states. The interfacial interaction continues even at multilayer Ti coverage mainly by the partial disruption of Mg-Cl bonds and the formation of Ti-Cl sites, rendering this interface a very promising UHV-compatible model of a pre-catalyst for olefin polymerization. After the final annealing, the MgCl2 multilayers desorb while Ti remains on the surface forming a silicide layer on which Cl and Mg atoms are attached. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4727760] Photoelectron spectroscopy with synchrotron radiation, low energy electron diffraction, and ion-scattering spectroscopy were used in order to study the Ti/MgCl2 interface grown on an atomically clean Si(111) 7 x 7 substrate. A series of high resolution spectra after deposition of a thick MgCl2 layer, step by step deposition of Ti and gradual annealing, indicated a very reactive interface even at room temperature. Strong interaction between the incoming Ti atoms and the MgCl2 layer, leads to the formation of Ti2+ and Ti4+ oxidation states. The interfacial interaction continues even at multilayer Ti coverage mainly by the partial disruption of Mg-Cl bonds and the formation of Ti-Cl sites, rendering this interface a very promising UHV-compatible model of a pre-catalyst for olefin polymerization. After the final annealing, the MgCl2 multilayers desorb while Ti remains on the surface forming a silicide layer on which Cl and Mg atoms are attached. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4727760] (en)
Title	Investigation of the Ti/MgCl2 interface on a Si(111) 7 x 7 substrate Investigation of the Ti/MgCl2 interface on a Si(111) 7 x 7 substrate (en)
skos:prefLabel	Investigation of the Ti/MgCl2 interface on a Si(111) 7 x 7 substrate Investigation of the Ti/MgCl2 interface on a Si(111) 7 x 7 substrate (en)
skos:notation	RIV/00216208:11320/12:10130859!RIV13-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(LA08022), P(LD11047), P(LG12003)
http://linked.open...iv/cisloPeriodika	22
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Matolín, Vladimír Skála, Tomáš
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	142941
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10130859
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sio2; xps; polymerization; ziegler-natta catalysts (en)
http://linked.open.../riv/klicoveSlovo	sio2 xps ziegler-natta catalysts polymerization
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[F4D0AA2CC93E]
http://linked.open...i/riv/nazevZdroje	Journal of Chemical Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Materials science beamline at synchrotron Elettra in Trieste Participation of Czech scientists in synchrotron radiation experiments at Elettra Model Systems of Nanostructured Bimetallic Materials for Enviromental Applications
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	136
http://linked.open...iv/tvurceVysledku	Matolín, Vladimír Skála, Tomáš Chab, V. Plekan, O. Karakalos, S. Siokou, A. Ladas, S. Prince, K.
http://linked.open...ain/vavai/riv/wos	000305268500036
issn	0021-9606
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.4727760
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Investigation of the Ti/MgCl2 interface on a Si(111) 7 x 7 substrate

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