Faceting Transition at the Oxide-Metal Interface: (13131) Facets on Cu(110) Induced by Carpet-Like Ceria Overlayer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319368" target="_blank" >RIV/00216208:11320/15:10319368 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/jp5099359" target="_blank" >http://dx.doi.org/10.1021/jp5099359</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp5099359" target="_blank" >10.1021/jp5099359</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Faceting Transition at the Oxide-Metal Interface: (13131) Facets on Cu(110) Induced by Carpet-Like Ceria Overlayer

Popis výsledku v původním jazyce

Structural transitions affect electronic structure of materials and consequently their catalytic properties. We report the observation of faceting of a low index metal surface at an oxide-metal interface in a catalytically relevant system of ceria on Cu(110). We observe formation of (13 13 1) facets on the Cu(110) surface covered by ceria upon annealing above 500 degrees C. The faceting transition occurs in spite of a weak adsorbate-substrate interaction, which manifests itself in ceria adopting a carpet-like growth mode. We rationalize the surface faceting under such conditions by oxide overlayer-induced modification of the roughening temperature of Cu(110). We describe the carpet-like ceria film in terms of elasticity theory and show that the specific structure of the ceria supported on Cu(13 13 1) can lead to a periodic modulation of the electronic structure of the ceria-copper interface. The reported structural transition indicates that surface faceting of metal can occur at the ox

Název v anglickém jazyce

Faceting Transition at the Oxide-Metal Interface: (13131) Facets on Cu(110) Induced by Carpet-Like Ceria Overlayer

Popis výsledku anglicky

Structural transitions affect electronic structure of materials and consequently their catalytic properties. We report the observation of faceting of a low index metal surface at an oxide-metal interface in a catalytically relevant system of ceria on Cu(110). We observe formation of (13 13 1) facets on the Cu(110) surface covered by ceria upon annealing above 500 degrees C. The faceting transition occurs in spite of a weak adsorbate-substrate interaction, which manifests itself in ceria adopting a carpet-like growth mode. We rationalize the surface faceting under such conditions by oxide overlayer-induced modification of the roughening temperature of Cu(110). We describe the carpet-like ceria film in terms of elasticity theory and show that the specific structure of the ceria supported on Cu(13 13 1) can lead to a periodic modulation of the electronic structure of the ceria-copper interface. The reported structural transition indicates that surface faceting of metal can occur at the ox

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

—

Svazek periodika

119

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1851-1858

Kód UT WoS článku

000348753000028

EID výsledku v databázi Scopus

2-s2.0-84921981233