First-principles design of metal alloy catalysts for electrocatalytic methanol oxidation

Matthew Neurock, Michael J. Janik, Sally A. Wasileski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

First principle theoretical results aimed at understanding the elementary steps that control the electrocatalytic oxidation of methanol at the anode of the direct methanol fuel cell (DMFC) were presented. Elucidating the elementary steps and the potential inhibition by CO offers potential solutions toward increasing catalytic activity and fuel cell performance. A periodic density functional theory based method was developed to model the electrocatalytic environment that includes both the effects of solvation and an electric field on the elementary step energetics. This method was applied to clarify key parameters in the design of alloy materials for the DMFC anode. Periodic gradient corrected density functional theoretical calculations were conducted to analyze the dual path of methanol oxidation over well-defined Pt surfaces. A substantial overpotential was associated with CO oxidation on pure Pt surfaces. The addition of ruthenium to the Pt anode reduced the overpotential to CO oxidation. This is an abstract of a paper presented at the AIChE Annual Meeting (San Francisco, CA 11/12-17/2006).

Original languageEnglish (US)
Title of host publication2006 AIChE Annual Meeting
StatePublished - Dec 1 2006
Event2006 AIChE Annual Meeting - San Francisco, CA, United States
Duration: Nov 12 2006Nov 17 2006

Other

Other2006 AIChE Annual Meeting
CountryUnited States
CitySan Francisco, CA
Period11/12/0611/17/06

Fingerprint Dive into the research topics of 'First-principles design of metal alloy catalysts for electrocatalytic methanol oxidation'. Together they form a unique fingerprint.

Cite this