Article ID Journal Published Year Pages File Type
9595550 Surface Science 2005 7 Pages PDF
Abstract
We have studied the influence of CO on the adsorption of benzene on the Co(0 0 0 1) surface using LEED, XPS, TDS and work function measurements. CO was found to reduce the benzene adsorption, but even at saturation CO exposure no complete blocking was observed. Thermal desorption of the coadsorbed layer featured CO and H2 peaks indicating partial dehydrogenation of benzene and retaining of the CO bond. Ordered LEED structures were found with all coverages: Pre-adsorption of CO led to patterns already seen for pure carbon monoxide adsorption. Pre-adsorption of benzene showed the known (7×7)R19° structure of pure benzene also with small CO exposures, but higher CO exposures yielded a mixture of (7×7)R19° and (3×3)R30° patterns.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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