Do Quantum Size Effects Control CO Adsorption on Gold Nanoparticles?

Monolayer gold islands with a thickness of one or a few monolayers on an FeO(111) substrate are found to exhibit identical CO adsorption behavior as large gold particles (see picture). This result suggests that particle thickness does not play a significant role in CO adsorption, and therefore size...

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Published inAngewandte Chemie International Edition Vol. 43; no. 1; pp. 118 - 121
Main Authors Lemire, Celine, Meyer, Randall, Shaikhutdinov, Shamil, Freund, Hans-Joachim
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.01.2004
WILEY‐VCH Verlag
Subjects
carbon monoxide
gold
nanoparticles
oxide films
surface chemistry
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Summary:Monolayer gold islands with a thickness of one or a few monolayers on an FeO(111) substrate are found to exhibit identical CO adsorption behavior as large gold particles (see picture). This result suggests that particle thickness does not play a significant role in CO adsorption, and therefore size effects seen for the low‐temperature CO oxidation reaction are not related to quantum size effects.
Bibliography:istex:71BCD73E47660CFDB41C527E540B83295D05D849
ArticleID:ANIE200352538
We acknowledge financial support from the EU Networks "Catalysis by Gold" (AURICAT) and "Reactivity of Cöean and Modified Oxide Surfaces" (Oxide Surfaces). R.M. thanks the Alexander von Humboldt Foundation for a fellowship.
ark:/67375/WNG-TJLQM0LQ-Q
We acknowledge financial support from the EU Networks “Catalysis by Gold” (AURICAT) and “Reactivity of Cöean and Modified Oxide Surfaces” (Oxide Surfaces). R.M. thanks the Alexander von Humboldt Foundation for a fellowship.
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200352538