Bifunctional Pt-Si Alloys for Small Organic Molecule Electro-oxidation

Anastasia Aleksandrovna Permyakova, Jin Suntivich, Binghong Han, Jens Oluf Jensen, Qingfeng Li, Niels Bjerrum, Yang Shao-Horn

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Abstract

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.
Original languageEnglish
Publication date2012
Publication statusPublished - 2012
Event2012 MRS Fall Meeting & Exhibit - Hynes Convention Center, Boston, MA, United States
Duration: 25 Nov 201230 Nov 2012
http://www.mrs.org/fall2012/

Conference

Conference2012 MRS Fall Meeting & Exhibit
LocationHynes Convention Center
CountryUnited States
CityBoston, MA
Period25/11/201230/11/2012
Internet address

Bibliographical note

Symposium C: Electrocatalysis and Interfacial Electrochemistry for Energy Conversion and Storage

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