Farias, Manuel J.S., Cheuquepán, William, Tanaka, Auro A., Feliu, Juan M.
Requirement of initial long-range substrate structure in unusual CO pre-oxidation on Pt(111) electrodes
Electrochemistry Communications. 2018, 97: 60-63. doi:10.1016/j.elecom.2018.10.019
URI: http://hdl.handle.net/10045/83150
DOI: 10.1016/j.elecom.2018.10.019
ISSN: 1388-2481 (Print)
Abstract: 
The activation pathway of CO electro-oxidation at low potentials is frequently favored on a catalyst with surface defects. Here, we report a discovery in which an initial long-range substrate structure is required for the activation of an unusual CO pre-oxidation reaction pathway on Pt(111) surfaces which have been flame annealed and then cooled in a CO atmosphere. Different to current understanding about the oxidation of CO on Pt, the activation of this reaction pathway is inhibited as the (111) planes become defect-rich.
Keywords:Electrocatalysis, Surface structure-sensitive, Pt electrode, CO pre-oxidation
Elsevier
info:eu-repo/semantics/article