title: Electro-oxidation of ethanol and acetaldehyde on platinum single-crystal electrodes.
abstract: The electrochemical oxidation of ethanol and acetaldehyde in sulfuric acid and perchloric acid were studied at Pt (111), Pt (110), and a number of Pt [n(l11)x(111)] single-crystal electrodes. The oxidation of ethanol shows a marked dependence on the surface structure, roughly increasing as the surface step density increases. The oxidation of acetaldehyde shows a reversed correlation, the activity decreasing with increasing step density. Based on the results obtained here and reported earlier in electrochemical and ultrahigh vacuum literature, a detailed reaction scheme for the ethanol oxidation mechanism is suggested.
authors.affiliation: Leiden Institute of Chemistry, Leiden University, PO Box 9502, RA Leiden 2300, The Netherlands.
authors.forename: Stanley C S
authors.initials: SC
authors.lastname: Lai
authors.forename: Marc T M
authors.initials: MT
authors.lastname: Koper
mesh_terms: D000079:Acetaldehyde / Q000737:chemistry*; D002384:Catalysis; D003198:Computer Simulation; D003460:Crystallization / Q000379:methods; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D004579:Electron Transport; D000431:Ethanol / Q000737:chemistry*; D008956:Models, Chemical; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000431:Ethanol; D010984:Platinum; D000079:Acetaldehyde; D010100:Oxygen