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RESEARCH PRODUCT
Formation of Gold(I) Edge Oxide at Flat Gold Nanoclusters on an Ultrathin MgO Film under Ambient Conditions
Hannu HäkkinenKaroliina HonkalaPentti Frondeliussubject
Materials scienceOxideNanotechnologyGeneral ChemistryGeneral MedicineEdge (geometry)Heterogeneous catalysisCatalysisNanoclustersCatalysisMetalchemistry.chemical_compoundchemistryChemical engineeringvisual_artvisual_art.visual_art_mediumParticleThin filmdescription
Many active gold catalysts are prepared onreducible oxides, and strong interactions between the supportand the gold particle may create active sites at the peripheryclose to the particle–support interface. These interactionsmay also include charge transfer to or from the particle. Forpurely geometric reasons, small particles have a high propor-tion of low-coordinated edge and corner atoms that might actas reaction centers. Also, thermal effects from localized softphonon modes at particle edges may contribute to thelowering of critical reaction barriers.Lately, a large amount of work has been conducted toelucidate the properties of gold clusters on ultrathin (a fewmonolayers (ML) thick) MgO films supported by metal,typically silver.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-09-17 | Angewandte Chemie |