| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 50966 | Catalysis Communications | 2012 | 5 Pages |
A high-performance, gold-promoted Pd catalyst with mesoporous hollow silica spheres as support, PdAu/MHSS, was prepared using an impregnation–reduction approach. The catalyst showed 10 times higher activity than commercial Pd/C catalyst and 6 times higher activity than Pd/MHSS catalyst. The conversion of phenol was 100% within 30 min of reaction at 80 °C. The catalyst was characterized by XRD, XPS, and TEM, which revealed that its high performance may result from both the high dispersion of active components on the MHSS, caused by the addition of gold, and the interaction between palladium and gold.
Graphical abstractA high performance, gold-promoted Pd catalyst using mesoporous hollow silica spheres as support was successfully prepared. The catalyst showed 6 and 10 times higher activity than those of commercial Pd/C catalyst and Pd/MHSS catalyst towards the hydrogenation of phenol at mild condition. The improved dispersion of active components and the interaction between the gold and palladium by the addition of gold may be the main reasons for the high performance of the catalyst.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Gold-promoted palladium catalyst with mesoporous hollow silica spheres as support. ► The catalyst shows 10 times higher activity than Pd/C to hydrogenation of phenol. ► The dispersion of active components was improved significantly by the addition of gold.
