The blocking of the step-mediated indirect channel to hydrogen dissociation by oxygen on Pt(533)
Autor: | Brian E. Hayden, Claire Mormiche, Adam T. Gee, T. S. Nunney |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Surface Science. 512:165-172 |
ISSN: | 0039-6028 |
DOI: | 10.1016/s0039-6028(02)01733-8 |
Popis: | The initial dissociative sticking probability, S-0, of H-2 on clean and oxygen modified Pt(5 3 3) was measured as a function of incident kinetic energy, E-i, surface temperature, T-s, and coverage, ?(H). At low oxygen coverages, where oxygen adsorption leads to oxygen atoms decorating step sites, the indirect channel to hydrogen dissociation operating in the energy regime E-i |
Databáze: | OpenAIRE |
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