Abstract
Slow, activated processes, repeatedly observed in chemisorption studies with supported metals, were specifically investigated in the slow uptake of oxy oxygen at 400°C leads to incorporation of oxygen, which in turn causes enhanced activity towards benzene hydrogenation. In the slow carbon monoxide a of higher dispersion. The coverage of the corresponding surface sites causes a selectivity change in the hydrogenolysis of methylcyclopentane towards less n-hexane formation. Based on these results, the sites responsible for this tightly bound carbon monoxide species are deduced to be located at the phase boundary platinum/support.
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