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RESEARCH PRODUCT
Chemisorption of hydrogen on a V5+ cluster
K. LützenkirchenJ. ZieglerLutz SchweikhardK. DasguptaG. Dietrichsubject
ArgonchemistryHydrogenCollision-induced dissociationChemisorptionBinding energyAnalytical chemistryGeneral Physics and Astronomychemistry.chemical_elementVanadiumIon trapPhysical and Theoretical ChemistryDissociation (chemistry)description
Abstract The binding between V 5 + and hydrogen is studied by collision induced dissociation of the cluster-adsorbate V 5 + H 2 . Vanadium clusters are produced by laser vaporization and injected into an electromagnetic ion trap. After mass separation of V 5 + , the pulsed addition of hydrogen yields V 5 + H 2 . The desorption of hydrogen is studied by acceleration of V 5 + H 2 with variable rf voltages and collisions with argon atoms. From the threshold voltage necessary for dissociation a binding energy of H 2 on V 5 + of 2.4 ± 0.3 eV is estimated. This value is consistent with a dissociative chemisorption of hydrogen.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-04-01 | Chemical Physics Letters |