Hydrogen spillover monitored by resonant photoemission spectroscopy
Lykhach Y, Staudt T, Vorokhta M, Skala T, Johanek V, Prince KC, Matolin V, Libuda J (2012)
Publication Status: Published
Publication Type: Journal article
Publication year: 2012
Journal
Publisher: ACADEMIC PRESS INC ELSEVIER SCIENCE
Book Volume: 285
Pages Range: 6-9
Journal Issue: 1
DOI: 10.1016/j.jcat.2011.09.002
Abstract
We have employed resonant photoemission spectroscopy to investigate the phenomenon of hydrogen spillover on well-defined model Pt/ceria catalysts. On Pt/CeO2(111)/Cu(111), hydrogen spillover and reverse spillover give rise to reversible changes of the oxidation state of the surface cerium ions. These changes are monitored with highest sensitivity via resonant enhancement of Ce3+- and Ce4+-related features in the valence band photoemission spectra. The temperature regions are precisely determined in which specific processes such hydrogen spillover, Ce3+ transport, and reverse spillover are activated. (C) 2011 Elsevier Inc. All rights reserved.
Authors with CRIS profile
Yaroslava Lykhach
Lehrstuhl für Physikalische Chemie II
Jörg Libuda
Professur für Physikalische Chemie
Additional Organisation(s)
Involved external institutions
Elettra Sincrotrone Trieste S.C.p.A.
Italy (IT)
Univerzita Karlova v Praze / Charles University in Prague
Czech Republic (CZ)
Italy (IT)
Univerzita Karlova v Praze / Charles University in Prague
Czech Republic (CZ)
How to cite
APA:
Lykhach, Y., Staudt, T., Vorokhta, M., Skala, T., Johanek, V., Prince, K.C.,... Libuda, J. (2012). Hydrogen spillover monitored by resonant photoemission spectroscopy. Journal of Catalysis, 285(1), 6-9. https://doi.org/10.1016/j.jcat.2011.09.002
MLA:
Lykhach, Yaroslava, et al. "Hydrogen spillover monitored by resonant photoemission spectroscopy." Journal of Catalysis 285.1 (2012): 6-9.
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