A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F09%3A00206633" target="_blank" >RIV/00216208:11320/09:00206633 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

A resonant photoemission applied to cerium oxide based nanocrystals (Art.No. 215706)

Original language description

Cerium 4f level occupation determines the properties of cerium oxide based catalysts in a significant way. Photoelectron spectroscopy is a powerful tool for investigating Ce 4f states, and there are many spectroscopic data showing different 4f configurations using Ce 3d spectra. Resonance spectroscopy permits the determination of 4f state occupation in ceria based compounds with very high sensitivity. In this work the Ce 4f level of nanosized cerium oxide particles was investigated with the use of resonant photoelectron spectroscopy in the Ce 4d-4f photoabsorption region at photon energies hny around 121.5 and 124.5 eV. A strong interaction of ceria with different additives, e.g. Pd and Sn, led to a partial Ce4 Ce3 transition that was observed as a significant resonance enhancement of 4f photoemission intensity. Increases of the CO oxidation catalytic activity were observed simultaneously.

Czech name

—

Czech description

—

Type

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

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

—

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>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Nanotechnology

ISSN

0957-4484

e-ISSN

—

Volume of the periodical

20

Issue of the periodical within the volume

21

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

—

UT code for WoS article

000265815600024

EID of the result in the Scopus database

—