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Compensation Effect Of Benzene Hydrogenation On Pt(111) And Pt(100) Analyzed By The Selective Energy Transfer Model, Kaitlin M. Bratlie, Yimin Li, Ragnar Larsson, Gabor A. Somorjai
Compensation Effect Of Benzene Hydrogenation On Pt(111) And Pt(100) Analyzed By The Selective Energy Transfer Model, Kaitlin M. Bratlie, Yimin Li, Ragnar Larsson, Gabor A. Somorjai
Kaitlin M. Bratlie
Kinetic measurements at low temperatures (310-360 K) using gas chromatography (GC) for benzene hydrogenation on Pt(100) and Pt(111) single crystal surfaces have been carried out at Torr pressures. These kinetic measurements demonstrated a linear compensation effect for the production of cyclohexane. A detailed application of the model of selective energy transfer to the experimentally obtained results yields the vibrational frequency of the adsorbate leading to reaction. This frequency is attributed to ring distortion modes. The vibrational frequency of the heat bath, or catalyst, is ascribed to a Pt-H mode. An approximate heat of adsorption of the reacting molecule is also …