Support nanostructure boosts oxygen transfer to catalytically active platinum nanoparticles
Vayssilov GN, Lykhach Y, Migani A, Staudt T, Petrova GP, Tsud N, Skala T, Bruix A, Illas F, Prince KC, Matolin V, Neyman KM, Libuda J (2011)
Publication Status: Published
Publication Type: Journal article
Publication year: 2011
Journal
Publisher: NATURE PUBLISHING GROUP
Book Volume: 10
Pages Range: 310-315
Journal Issue: 4
DOI: 10.1038/NMAT2976
Abstract
Interactions of metal particles with oxide supports can radically enhance the performance of supported catalysts. At the microscopic level, the details of such metal-oxide interactions usually remain obscure. This study identifies two types of oxidative metal-oxide interaction on well-defined models of technologically important Pt-ceria catalysts: (1) electron transfer from the Pt nanoparticle to the support, and (2) oxygen transfer from ceria to Pt. The electron transfer is favourable on ceria supports, irrespective of their morphology. Remarkably, the oxygen transfer is shown to require the presence of nanostructured ceria in close contact with Pt and, thus, is inherently a nanoscale effect. Our findings enable us to detail the formation mechanism of the catalytically indispensable Pt-O species on ceria and to elucidate the extraordinary structure-activity dependence of ceria-based catalysts in general.
Authors with CRIS profile
Yaroslava Lykhach
Lehrstuhl für Physikalische Chemie II
Jörg Libuda
Professur für Physikalische Chemie
Additional Organisation(s)
Involved external institutions
Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски"
Bulgaria (BG)
Universitat de Barcelona (UB) / University of Barcelona
Spain (ES)
Elettra Sincrotrone Trieste S.C.p.A.
Italy (IT)
Univerzita Karlova v Praze / Charles University in Prague
Czech Republic (CZ)
Bulgaria (BG)
Universitat de Barcelona (UB) / University of Barcelona
Spain (ES)
Elettra Sincrotrone Trieste S.C.p.A.
Italy (IT)
Univerzita Karlova v Praze / Charles University in Prague
Czech Republic (CZ)
How to cite
APA:
Vayssilov, G.N., Lykhach, Y., Migani, A., Staudt, T., Petrova, G.P., Tsud, N.,... Libuda, J. (2011). Support nanostructure boosts oxygen transfer to catalytically active platinum nanoparticles. Nature Materials, 10(4), 310-315. https://dx.doi.org/10.1038/NMAT2976
MLA:
Vayssilov, Georgi N., et al. "Support nanostructure boosts oxygen transfer to catalytically active platinum nanoparticles." Nature Materials 10.4 (2011): 310-315.
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