Abstract
We investigated the dynamics of the adsorption of O 2 on Ag(001) with the supersonic molecular beam technique combined with EEL spectroscopy, TDS and the reflection detector technique. The initial sticking coefficient S 0 was measured as a function of the impact energy and of the angle of incidence of the molecules at crystal temperatures of 100 and 300 K, corresponding to molecular and dissociative adsorption, respectively. Both regimes are characterized by the same distribution of energy barriers. This indicates that, in analogy to the case of our previous investigation of O 2Ag(110), the main reaction path involves activated adsorption into the molecular well, followed eventually by thermally induced dissociation for T s > 150 K. Again in analogy to O 2Ag(110), the physisorbed state plays no role in the chemisorption process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
