Carbon Monoxide as a Promoter for its own Oxidation on a Gold Electrode

Authors


  • We acknowledge financial support from the Netherlands Organization for Scientific Research (NWO), the National Computer Facilities (NCF) for computing resources, and the European Commission (FP7 Initial Training Network “ELCAT”, Grant Agreement No. 214936-2).

Abstract

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Goldeneye: A model for CO oxidation on gold electrodes in alkaline media is presented, and it assumes that CO enhances the adsorption of its own oxidant. This model explains a reaction order larger than 1, and that dissolved CO was easier to oxidize than adsorbed CO. DFT calculations confirmed that CO and OH enhanced each other′s binding on the Au(111) surface. C black, O red, H gray.

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