A molecular oxygen beam has been used to study the dissociative and molecular sticking probability at the Ag(111) surface as a function of incidence energy and angle, surface temperature and surface coverage. Two mechanisms are seen to play a role in the dissociative sticking: a direct and a precursor mediated one. Both are strongly activated by the incidence energy. The molecular chemisorption state is shown to be the precursor to dissociation. Results on oxygen desorption are also discussed.

Surf. Sci.

Raukema, A., Butler, D. A., Box, F. M. A., & Kleyn, A. W. (1996). Dissociative and non-dissociative sticking of O2 at the Ag(111) surface. Surf. Sci., 347, 151–168.