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BIBTEX RIS

Adsorption probabilities of CO on O–ZnO: A molecular beam study

2000; American Institute of Physics; Volume: 18; Issue: 4 Linguagem: Inglês

10.1116/1.582475

ISSN

1520-8559

Autores

Th. Becker, Ch. Boas, U. Burghaus, Christof Wöll,

Tópico(s)

nanoparticles nucleation surface interactions

Resumo

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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