Structural and morphological modifications of thermally reduced cerium oxide ultrathin epitaxial films on Pt(111)
作者： P. Luches , F. Pagliuca , S. Valeri
DOI: 10.1039/C4CP02723J
关键词:
摘要: The modifications of the stoichiometry, morphology and surface structure cerium oxide ultrathin films induced by thermal treatments under vacuum oxygen partial pressure were studied using in situ X-ray photoemission spectroscopy, scanning tunnelling microscopy low energy electron diffraction. effect film nominal thickness, heating temperature time on degree reduction was investigated. is more relevant surface, where different ordered structures observed at degrees for very thin films. obtained results are discussed taking into account dimensionality effects proximity Pt substrate. After it always possible to re-oxidize back their original oxidation state treatment oxygen-rich conditions.
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Stefan Torbrügge, Marion Cranney, Michael Reichling, Morphology of step structures on CeO2(111) Applied Physics Letters. ,vol. 93, pp. 073112- ,(2008) , 10.1063/1.2969790
Martin Sterrer, Markus Heyde, Marek Novicki, Niklas Nilius, Thomas Risse, Hans-Peter Rust, Gianfranco Pacchioni, Hans-Joachim Freund, Identification of color centers on MgO(001) thin films with scanning tunneling microscopy Journal of Physical Chemistry B. ,vol. 110, pp. 46- 49 ,(2006) , 10.1021/JP056306F
M. Romeo, K. Bak, J. El Fallah, F. Le Normand, L. Hilaire, XPS Study of the reduction of cerium dioxide Surface and Interface Analysis. ,vol. 20, pp. 508- 512 ,(1993) , 10.1002/SIA.740200604
Ulrich Berner, Klaus-Dieter Schierbaum, Cerium oxides and cerium-platinum surface alloys on Pt(111) single-crystal surfaces studied by scanning tunneling microscopy Physical Review B. ,vol. 65, pp. 235404- ,(2002) , 10.1103/PHYSREVB.65.235404
F. Dvořák, O. Stetsovych, M. Steger, E. Cherradi, I. Matolínová, N. Tsud, M. Škoda, T. Skála, J. Mysliveček, V. Matolín, Adjusting Morphology and Surface Reduction of CeO2(111) Thin Films on Cu(111) Journal of Physical Chemistry C. ,vol. 115, pp. 7496- 7503 ,(2011) , 10.1021/JP1121646
Thorsten Staudt, Yaroslava Lykhach, Lutz Hammer, M. Alexander Schneider, Vladimir Matolín, Jörg Libuda, A route to continuous ultra-thin cerium oxide films on Cu(1 1 1) Surface Science. ,vol. 603, pp. 3382- 3388 ,(2009) , 10.1016/J.SUSC.2009.09.031
V. Matolín, J. Libra, M. Škoda, N. Tsud, K.C. Prince, T. Skála, Methanol adsorption on a CeO2(111)/Cu(111) thin film model catalyst Surface Science. ,vol. 603, pp. 1087- 1092 ,(2009) , 10.1016/J.SUSC.2009.02.010
Ivana Celardo, Jens Z. Pedersen, Enrico Traversa, Lina Ghibelli, Pharmacological potential of cerium oxide nanoparticles Nanoscale. ,vol. 3, pp. 1411- 1420 ,(2011) , 10.1039/C0NR00875C
Peter Burroughs, Andrew Hamnett, Anthony F. Orchard, Geoffrey Thornton, Satellite structure in the X-ray photoelectron spectra of some binary and mixed oxides of lanthanum and cerium Journal of The Chemical Society-dalton Transactions. pp. 1686- 1698 ,(1976) , 10.1039/DT9760001686
Friedrich Esch, Stefano Fabris, Ling Zhou, Tiziano Montini, Cristina Africh, Paolo Fornasiero, Giovanni Comelli, Renzo Rosei, Electron localization determines defect formation on ceria substrates. Science. ,vol. 309, pp. 752- 755 ,(2005) , 10.1126/SCIENCE.1111568