| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 167110 | Chinese Journal of Chemical Engineering | 2015 | 8 Pages |
Pt–Ru, Pt and Ru catalysts supported on zirconia were prepared by impregnation method and were tested in selective oxidation of methylamine (MA) in aqueous media. Among three catalysts, Ru/ZrO2 was more active than Pt/ZrO2 while Pt–Ru/ZrO2 demonstrated the best catalytic activity due to the fact that Pt addition efficiently promoted the dispersion of active species in bimetallic catalyst. Therefore, the ~ 100% TOC conversion and N2 selectivity were achieved over Pt–Ru/ZrO2, Pt/ZrO2 and Ru/ZrO2 catalysts at 190, 220 and 250 °C, respectively.
Graphical abstractDuring selective oxidation of methylamine (MA), Ru is more active than Pt when supported on zirconia. The dispersion of active species in Ru/ZrO2 is obviously promoted by the introduction of Pt component, thus Pt–Ru/ZrO2 plays the best catalytic activity among three catalysts in MA selective oxidation of MA. Additionally, MA selective oxidation follows a chemisorption mechanism.Figure optionsDownload full-size imageDownload as PowerPoint slide
