https://doi.org/10.1140/epjd/e2005-00236-0
Interaction of Cu cluster anions (Cun-, n = 8–11) with oxygen
Department of Physics, University of Konstanz, 78457 Konstanz,
Germany
Corresponding author: a young.kim@uni-konstanz.de
Received:
27
April
2005
Revised:
6
July
2005
Published online:
23
August
2005
The reaction of oxygen with Cu cluster anions consisting of 6–11 atoms was
studied by means of Time-of-Flight mass (TOF) spectroscopy and Ultraviolet
Photoelectron Spectroscopy (UPS). Using molecular oxygen, we found that a
Cu
cluster (
) can react only with one single oxygen
molecule, which adsorbs molecularly, implying that the clusters studied here
are less reactive towards oxygen chemisorption compared to the smaller
clusters (n<5). This result indicates that chemical properties can alter
significantly with increasing cluster size. Depending on the cluster source
conditions, different cluster structures and reactivity patterns were found.
These results are used to qualitatively describe the chemisorption
energetics of oxygen on Cu cluster anions.
PACS: 33.60.Cv – Ultraviolet and vacuum ultraviolet photoelectron spectra / 36.40.Jn – Reactivity of clusters / 36.40.Mr – Spectroscopy and geometrical structure of clusters / 36.40.Wa – Charged clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
