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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Imprimir: 1093-3611
ISSN On-line: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v7.i3.70
pages 333-342

THE INFLUENCE OF COPPER ON MICROSTRUCTURE AND CATALYTIC PROPERTIES OF CEO2 THIN FILMS DEPOSITED BY PULSED LASER DEPOSITION

M. Klimczak-Chmielowska
Faculty of Metallurgy and Science, University of Mining of Metallurgy, Cracow, Poland; and Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France
R. Chmielowski
Faculty of Metallurgy and Science, University of Mining of Metallurgy, Cracow, Poland; and Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France
A. Kopia
Faculty of Metallurgy and Science, University of Mining of Metallurgy, Cracow, Poland; and Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France
J. Kusinski
Faculty of Metallurgy and Science, University of Mining of Metallurgy, Cracow, Poland
Ch. Leroux
Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France
S. Villain
Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France
S. Saiztek
Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France
J. R. Gavarri
Laboratoire L2MP, Universite de Toulon et du Var, La Garde, France

RESUMO

Thin films of cerium dioxide doped with Cu were elaborated by Pulsed Laser Deposition technique from sintered Cu-CeO2 targets. The films were deposited on (100) oriented Si substrates. Scanning and Transmission Electron Microscopy, as well as x-ray diffraction analyses showed correlation between a copper atom fractions and crystalline structure of (Cu, Ce)O2 thin films. As demonstrated by x-ray diffraction analysis, when the quantity of Cu increases, the (Cu,Ce)O2 thin films manufactured by laser ablation show a change of the crystal growth preferential orientation (c-axis-orientation) from strong <111> to a strong <200> ones. Infrared Spectrometry showed that, the change of the copper doped ceria crystals (Cu,Ce)O2 texture has a significant influence on their catalytic behaviour with CH4.