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

Nature Materials Nature Publishing Group

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)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Involved external institutions

Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски" BG Bulgaria (BG) Universitat de Barcelona (UB) / University of Barcelona ES Spain (ES) Elettra Sincrotrone Trieste S.C.p.A. IT Italy (IT) Univerzita Karlova v Praze / Charles University in Prague CZ 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://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.

BibTeX: Download