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influence of the support on surface rearrangements of bimetallic nanoparticles in real catalysts
dc.contributor.author | Divins, N.J. |
dc.contributor.author | Angurell Purroy, Inmaculada |
dc.contributor.author | Llorca Piqué, Jordi |
dc.contributor.other | Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques |
dc.date.accessioned | 2015-01-07T11:26:04Z |
dc.date.created | 2014-10-31 |
dc.date.issued | 2014-10-31 |
dc.identifier.citation | Divins, N.; Angurell, I.; Llorca, J. influence of the support on surface rearrangements of bimetallic nanoparticles in real catalysts. "Science", 31 Octubre 2014, vol. 346, núm. 6209, p. 620-623. |
dc.identifier.issn | 0036-8075 |
dc.identifier.uri | http://hdl.handle.net/2117/25149 |
dc.description.abstract | Catalysts used for heterogeneous processes are usually composed of metal nanoparticles dispersed over a high–surface-area support. In recent years, near-ambient pressure techniques have allowed catalyst characterization under operating conditions, overcoming the pressure gap effect. However, the use of model systems may not truly represent the changes that occur in real catalysts (the so-called material gap effect). Supports can play an important role in the catalytic process by providing new active sites and may strongly affect both the physical and chemical properties of metal nanoparticles. We used near-ambient pressure x-ray photoelectron spectroscopy to show that the surface rearrangement of bimetallic (rhodium-palladium) nanoparticles under working conditions for ethanol steam reforming with real catalysts is strongly influenced by the presence of a reducible ceria support. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject | Àrees temàtiques de la UPC::Energies |
dc.subject.lcsh | Nanoparticles |
dc.subject.lcsh | Catalysts |
dc.title | influence of the support on surface rearrangements of bimetallic nanoparticles in real catalysts |
dc.type | Article |
dc.subject.lemac | Nanopartícules |
dc.subject.lemac | Catalitzadors |
dc.contributor.group | Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions |
dc.identifier.doi | 10.1126/science.1258106 |
dc.relation.publisherversion | http://www.sciencemag.org/cgi/content/full/346/6209/620?ijkey=W7.YNz1GLxslU &keytype=ref&siteid=sci |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 15289231 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Divins, N.; Angurell, I.; Llorca, J. |
local.citation.publicationName | Science |
local.citation.volume | 346 |
local.citation.number | 6209 |
local.citation.startingPage | 620 |
local.citation.endingPage | 623 |
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