Activation energy sticking probability measurements

Figure 4.17. Measured sticking probability (relative to the clean surface) of a methane molecular beam on Ni(l 11) surfaces with varying amounts of Au alloying into the surface. The result of a model (prediction) based on DFT calculations of the change in the activation energy due to the addition of Au atoms is also shown. The beam data primarily measures methane sticking on the facets. Adapted from Ref. [59].

In this section will be described the experimental procedures which measure the rate of adsorption and the sticking probability the experimental results will be given and will be interpreted in terms of an energy-level diagram and an activation energy and finally the bearing of these results on catalysis will be discussed. 

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