Effect of Ag-Doping on the Catalytic Activity of Polymer-Stabilized Au Clusters in Aerobic Oxidation of Alcohol
A set of nearly monodisperse Au−Ag alloy clusters (size range 1.6−2.2 nm) with various Ag content (5−30%) was prepared by the co-reduction method in the presence of poly(N-vinyl-2-pyrrolidone) (PVP). The catalytic activities of the Au−Ag:PVP clusters were investigated for aerobic oxidation of p-hydr...
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| Veröffentlicht in: | Journal of physical chemistry. C 2007-04, Vol.111 (13), p.4885-4888 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A set of nearly monodisperse Au−Ag alloy clusters (size range 1.6−2.2 nm) with various Ag content (5−30%) was prepared by the co-reduction method in the presence of poly(N-vinyl-2-pyrrolidone) (PVP). The catalytic activities of the Au−Ag:PVP clusters were investigated for aerobic oxidation of p-hydroxybenzyl alcohol as a model reaction to understand the effect of Ag on the catalytic activity of Au clusters. It was found that the rate constants per unit surface area for Au−Ag:PVP clusters with small Ag content ( |
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| ISSN: | 1932-7447 1932-7455 |
| DOI: | 10.1021/jp070791s |