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Methanol was adsorbed on Rh (111) at 90K. With increasing methanol exposure first a mono-layer, a second layer and then multi-layers of methanol are formed at this surface temperature. During methanol desorption between 110 and 205K about 50% of the adsorbed methanol undergoes a dehydrogenation reaction to form hydrogen and carbon monoxide adsorbed on the surface. These reaction products desorb at...
Reducible transition metal oxides are well-known promoters of the hydrogenation of CO on noble metal surfaces. In this study the promotional effect of vanadia and ceria adlayers on Rh and Pd surfaces was investigated with emphasis on the effect of the oxidation state on CO adsorption and catalytic activity. “Inverse supported catalysts” were prepared by UHV deposition of V and Ce on the noble metal...
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