Abstract
The measurement of the angular distribution of molecules desorbing from single crystal surfaces provides information on the dynamics of the desorption process. For desorption from completely equilibrated surface species, a cosine distribution is expected. However, often a noncosine distribution is observed, and this may be related to processes such as atom recombination at a point on a repulsive adsorbate-surface potential energy curve in the region of the transition state. A simple apparatus to measure the angular distribution is shown in Fig. 25.1a (Steinruck et al. in Surface Science 152/153:323, [1]).
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Yates, J.T. (2015). Temperature-Programmed Desorption/Reaction. In: Experimental Innovations in Surface Science. Springer, Cham. https://doi.org/10.1007/978-3-319-17668-0_25
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DOI: https://doi.org/10.1007/978-3-319-17668-0_25
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