Abstract

The adsorption characteristics of methyloxirane over PdSiO2 and RhSiO2 and its surface modifying properties were studied by IR spectroscopy. It was found that methyloxirane adsorbed irreversibly and the adsorption was dissociative resulting in relatively hydrogen-rich carbonaceous species strongly attached to the surface of the catalysts. Further, through monitoring the intensities and positions of CO vibration bands over the RhSiO2 catalysts it was found that methyloxirane oxidized the Rh surface as was suspected on the basis of kinetic measurements performed previously.

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