Steric effect in CO oxidation on Pt(111)

摘要

2 molecule. The O₂ sticking probability and the CO₂ production rate on CO-covered Pt(111) surfaces during the alignment-controlled O₂ beam irradiation were simultaneously monitored at a surface temperature of 330 K. The results indicate that, at the translational energy of 0.1-0.2 eV and at the CO coverage of <0.4 monolayers, both O₂ adsorption and CO oxidation proceed exclusively when the O₂ molecular axis is nearly parallel to the surface.]]>