Kinetic studies of reactions of cobalt clusters with deuterium
The kinetics of chemical reactions of cobalt clusters Co{sub n} with deuterium are described. Absolute rate constants have been measured in the cluster range n = 7--68 at 293 K. The rate constants are found to be a strong function of cluster size, varying by up to three orders of magnitude. This size , dependence is most prominent in the n = 7--25 size range: CO{sub 15} is the most reactive cluster, and CO{sub 7-9} and CO{sub 19--20} are particularly unreactive. Abrupt changes in the rate constants from one cluster size to the next are observed. For the clusters above n = 25, the rate constants show several less prominent maxima and minima superimposed on a slow, nearly monotonic increase with cluster size.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10184018
- Report Number(s):
- ANL/CP-76412; CONF-920921-4; ON: DE93000514
- Resource Relation:
- Conference: 6. international symposium on small particles and inorganic clusters,Chicago, IL (United States),16-22 Sep 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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