Abstract
Using both classical and quantum mechanical Monte Carlo methods, a number of properties are investigated for a single hydrogen atom adsorbed on palladium and nickel clusters. In particular, the geometries, the preferred binding sites, site specific hydrogen normal mode frequencies, and finite temperature effects in clusters from two to ten metal atoms are examined. Our studies indicate that hydrogen is localized in the present systems. The preferred hydrogen binding sites are found to be tetrahedral in clusters with five or fewer metal atoms and octahedral for clusters of six to ten atoms. The exceptions to this rule are Ni9H and Pd9H for which the outside, threefold hollow and the inside tetrahedral sites are preferred, respectively. Hydrogen induced ‘‘reconstruction’’ of bare cluster geometries is seen in seven and ten-atom clusters.
Bibliography
Chen, B., Gomez, M. A., Sehl, M., Doll, J. D., & Freeman, D. L. (1996). Theoretical studies of the structure and dynamics of metal/hydrogen systems: Diffusion and path integral Monte Carlo investigations of nickel and palladium clusters. The Journal of Chemical Physics, 105(21), 9686â9694.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 8:15 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 5, 2024, 10:01 p.m.) |
Indexed | 3 months ago (May 23, 2025, 3:28 a.m.) |
Issued | 28 years, 8 months ago (Dec. 1, 1996) |
Published | 28 years, 8 months ago (Dec. 1, 1996) |
Published Print | 28 years, 8 months ago (Dec. 1, 1996) |
@article{Chen_1996, title={Theoretical studies of the structure and dynamics of metal/hydrogen systems: Diffusion and path integral Monte Carlo investigations of nickel and palladium clusters}, volume={105}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.472798}, DOI={10.1063/1.472798}, number={21}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Chen, B. and Gomez, M. A. and Sehl, M. and Doll, J. D. and Freeman, David L.}, year={1996}, month=dec, pages={9686–9694} }