Two-Dimensional Effects on the in Situ Infrared Spectra of CO Adsorbed at Palladium-Covered Pt(111) Electrode Surfaces
作者： B. Álvarez , A. Rodes , J. M. Pérez , J. M. Feliu
DOI: 10.1021/JP0266547
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摘要: The in situ infrared spectra obtained for CO-saturated palladium layers deposited on Pt(111) and several vicinal surfaces are analyzed this paper by correlating the observed C−O stretching bands with cyclic voltammogram recorded corresponding surface before CO dosing. In case of electrode, results reported whole coverage range from (sub)monolayers to multilayers. For coverages up monolayer, consistent previous suggesting formation wide epitaxial islands upon deposition. Increasing above monolayer electrode gives rise a splitting band region between 1900 1950 cm-1. This is also when irrespective (111) or (100) orientation step sites regular terrace−step structure. Decreasi...
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