Support nanostructure boosts oxygen transfer to catalytically active platinum nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10108238" target="_blank" >RIV/00216208:11320/11:10108238 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1038/nmat2976" target="_blank" >http://dx.doi.org/10.1038/nmat2976</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/nmat2976" target="_blank" >10.1038/nmat2976</a>

Result language

angličtina

Original language name

Support nanostructure boosts oxygen transfer to catalytically active platinum nanoparticles

Original language description

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 oxidativemetal-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 ofthe catalytically indispensable Pt-O species on ceria and to elucidate the extraordinary structure-activity dependence of ceria-based catalysts in general.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nature Materials

ISSN

1476-1122

e-ISSN

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Volume of the periodical

10

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

310-315

UT code for WoS article

000288744700022

EID of the result in the Scopus database

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