| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 180214 | Electrochemistry Communications | 2011 | 4 Pages |
A novel Pt/SiC (5%Pt loading) catalyst prepared by an ultrasound promoted impregnation followed by calcination in hydrogen flow is reported. The catalysts reduced at different temperatures were characterized by cyclic voltammetry combined with TEM, XPS and XRD. The electrocatalytic activity was investigated for ethanol electrooxidation. A strong interaction between platinum and silicon carbide was observed, which possibly affects the surface electronic structure of platinum, hence improving the catalytic properties of the catalysts. The Pt/SiC reduced at 723 K shows much higher activity and CO tolerance for ethanol oxidation than that of Pt/C and Pt/SiC reduced at other temperatures. The reported results indicate that SiC is a promising support for platinum-based fuel cell catalysts.
► Pt/SiC catalysts were successfully synthesized for use in ethanol oxidation. ► Pt/SiC catalysts showed improved electrocatalytic properties compared with Pt/C. ► Pt/SiC reduced at 723 K show much higher activity for ethanol oxidation. ► SiC is a promising support for Pt-based fuel cell catalysts.
