| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 52186 | Catalysis Communications | 2011 | 4 Pages |
A series of carbon supported bimetallic Pt―Cu catalysts were prepared and used for glycerol oxidation with oxygen in a base-free aqueous solution. It was found that bimetallic Pt―Cu/C was more active than monometallic Pt/C towards selective oxidation of glycerol to glyceric acid. The selectivity of free glyceric acid reached 70.8% at an 86.2% conversion of glycerol over 5Pt―Cu/C. Highly dispersed bimetallic Pt―Cu nanoparticles with small particle size in dominant alloyed phase of PtCu3 were confirmed by XRD and TEM in the bimetallic Pt―Cu/C catalyst, which is proposed to contribute to the improved performance.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Selective oxidation of glycerol was performed on Pt―Cu/C in base-free conditions. ► All Cu modified Pt/C catalysts exhibited higher activity than the corresponding parent Pt/C. ► 3Pt–Cu/C (3 wt.%) exhibited higher activity than 5Pt/C (5 wt.%). ► Highly dispersed PtCu3 alloy was proposed to contribute to the improved performance.
