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
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