Abstract

One of the outstanding problems of surface reaction chemistry is the direct measurement of rate coefficients. In this paper, we discuss the utilization of secondary ion mass spectrometry (SIMS) and temperature programmed desorption (TPD) to make these measurements. The partial dehydrogenation of ethylene on Pt(111), the isotopic exchange of D for H in adsorbed ethylidyne on Pt(111) and the thermal behavior of thin films of Rh on titania serve as examples.

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