Electronic exchanges between adsorbed Ni atoms and TiO(2)(1 1 0) surface evidenced by resonant photoemission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10108219" target="_blank" >RIV/00216208:11320/11:10108219 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.elspec.2011.05.001" target="_blank" >http://dx.doi.org/10.1016/j.elspec.2011.05.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.elspec.2011.05.001" target="_blank" >10.1016/j.elspec.2011.05.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electronic exchanges between adsorbed Ni atoms and TiO(2)(1 1 0) surface evidenced by resonant photoemission

Popis výsledku v původním jazyce

Nickel was deposited on stoichiometric TiO(2)(1 1 0) surface in the 0.02-2.1 equivalent monolayer (eqML) range and analyzed by means of photoemission and resonant photoemission. In the case of very low coverage (lower than 0.1 eqML), deposited nickel reacts with the surface through an electronic transfer from nickel atoms towards titanium ions. This exchange caused the filling of unoccupied Ti3d states leading to the increase of a peak in the TiO2 band gap. These states can be better characterized through resonant photoemission experiments at the Ti 3p -} 3d absorption edge: for very low coverage, these states in the TiO2 band gap have resonant behavior of Ti3d electrons rather than Ni3d ones, confirming the filling of Ti3d states and thus electron transfer between nickel and titanium. For coverage higher than 0.14 eqML, nickel peaks (both Ni3p core level and valence band) should be related to the presence of metallic nickel in small clusters. (C) 2011 Elsevier B.V. All rights reserved

Název v anglickém jazyce

Electronic exchanges between adsorbed Ni atoms and TiO(2)(1 1 0) surface evidenced by resonant photoemission

Popis výsledku anglicky

Nickel was deposited on stoichiometric TiO(2)(1 1 0) surface in the 0.02-2.1 equivalent monolayer (eqML) range and analyzed by means of photoemission and resonant photoemission. In the case of very low coverage (lower than 0.1 eqML), deposited nickel reacts with the surface through an electronic transfer from nickel atoms towards titanium ions. This exchange caused the filling of unoccupied Ti3d states leading to the increase of a peak in the TiO2 band gap. These states can be better characterized through resonant photoemission experiments at the Ti 3p -} 3d absorption edge: for very low coverage, these states in the TiO2 band gap have resonant behavior of Ti3d electrons rather than Ni3d ones, confirming the filling of Ti3d states and thus electron transfer between nickel and titanium. For coverage higher than 0.14 eqML, nickel peaks (both Ni3p core level and valence band) should be related to the presence of metallic nickel in small clusters. (C) 2011 Elsevier B.V. All rights reserved

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Electron Spectroscopy and Related Phenomena

ISSN

0368-2048

e-ISSN

—

Svazek periodika

184

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

4

Strana od-do

410-413

Kód UT WoS článku

000293314800010

EID výsledku v databázi Scopus

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