We present measurements of initial adsorption probabilities, S0, as well as its coverage dependence, S(ΘCO), of CO on oxygen terminated ZnO(0001). The impact energies of the CO (48 meV<Ei<750 meV) and surfaces temperature (75 K<TS< 220 K) have been varied. The shape of the coverage dependent adsorption probability curves indicates the presence of precursor mediated adsorption. The heat of adsorption has been determined to (7–2 ΘCO) kcal/mol by assuming a pre-exponential factor of 1×1013 l/s.
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Becker et al. (2000) studied this question.
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