Binetti, Marcello; Weiße, Olaf; Hasselbrink, Eckart; Komrowski, Andrew J.; Kummel, Andrew C.:
Abstractive Chemisorption of O₂ on Al(111).
2000
In: Faraday discussions (Faraday Discuss.), Jg. 117 (2000), Heft Excited States at Surfaces, S. 313 - 320
Artikel/Aufsatz in Zeitschrift / Fach: Chemie
Titel:
Abstractive Chemisorption of O₂ on Al(111).
Autor(in):
Binetti, Marcello; Weiße, Olaf; Hasselbrink, Eckart im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Komrowski, Andrew J.; Kummel, Andrew C.
Erscheinungsjahr
2000
Erschienen in:
Faraday discussions (Faraday Discuss.), Jg. 117 (2000), Heft Excited States at Surfaces, S. 313 - 320
ISSN
DOI

Abstract:

Exptl. evidence is presented that abstraction is a common mechanism (~50%) in the dissociative chemisorption of O₂ on Al(111) at a translational energy of 0.5 eV. As a result of this mechanism, individual isolated O-atoms are obsd. in STM. At this translational energy ordinary dissociative chemisorption processes also occur, resulting in pairs of adatoms. The ejected O-atoms originating from the abstraction reaction are detected in the gas phase using laser spectrometry. Together, these observations provide compelling evidence for the abstraction mechanism.