Ordered Phases of Reduced Ceria As Epitaxial Films on Cu(111)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10288028" target="_blank" >RIV/00216208:11320/14:10288028 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/jp409220p" target="_blank" >http://dx.doi.org/10.1021/jp409220p</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp409220p" target="_blank" >10.1021/jp409220p</a>

Result language

angličtina

Original language name

Ordered Phases of Reduced Ceria As Epitaxial Films on Cu(111)

Original language description

Changes of stoichiometry in reducible oxides are inevitably accompanied by changes of the oxide structure. We study the relationship between the stoichiometry and the structure in thin epitaxial films of reduced ceria, CeOx, 1.5 {= x {= 2, prepared via an interface reaction between a thin ceria film on Cu(111) and a Ce metal deposit. We show that the transition between the limiting stoichiometries CeO2 and Ce2O3 is realized by equilibration of mobile oxygen vacancies near the surface of the film, whilethe fluorite lattice of cerium atoms remains unchanged during the process. We identify two surface reconstructions representing distinct oxygen vacancy ordering during the transition, a (root 7 x root 7)R19.1 degrees reconstruction representing a bulk termination of the t-Ce7O12 and a (3 x 3) reconstruction representing a bulk termination of CeO1.67. Due to the special property to yield ordered phases of reduced ceria the interface reaction between Ce and thin film ceria represents a uni

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2014

Confidentiality

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

Name of the periodical

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

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Volume of the periodical

118

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

357-365

UT code for WoS article

000329678200039

EID of the result in the Scopus database

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