Designing highly active catalysts for electro-oxidation of small organic molecules can help to reduce the anodic overpotential for more efficient utilization of hydrocarbon fuels. The challenge in developing more active electrocatalysts for electro-oxidation reactions is to satisfy the stringent bifunctional requirement, which demands both adsorption and water oxidation sites. In this contribution, we explore the possibility of using Pt-Si alloys to fulfill this bifunctional requirement. Silicon, a highly oxophillic element, is alloyed into Pt as a site for water oxidation, while Pt serves as a CO adsorption site. We will discuss the enhanced activity of Pt-Si alloys for small organic molecule oxidation, which can be attributed to the improved CO electro-oxidation kinetics on Pt-Si.
|Publication status||Published - 2012|
|Event||2012 MRS Fall Meeting & Exhibit - Hynes Convention Center, Boston, MA, United States|
Duration: 25 Nov 2012 → 30 Nov 2012
|Conference||2012 MRS Fall Meeting & Exhibit|
|Location||Hynes Convention Center|
|Period||25/11/2012 → 30/11/2012|