Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations
The stability patterns of single silver, platinum, and palladium atom doped gold cluster cations, <i>M</i>Au<sub><i>N</i>−1</sub><sup>+</sup> (<i>M</i> = Ag, Pt, Pd; <i>N</i> = 3–6), are investigated by a com...
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MDPI AG
2019-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/8/1666 |
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| author | Piero Ferrari Ewald Janssens |
| author_facet | Piero Ferrari Ewald Janssens |
| author_sort | Piero Ferrari |
| collection | DOAJ |
| description | The stability patterns of single silver, platinum, and palladium atom doped gold cluster cations, <i>M</i>Au<sub><i>N</i>−1</sub><sup>+</sup> (<i>M</i> = Ag, Pt, Pd; <i>N</i> = 3–6), are investigated by a combination of photofragmentation experiments and density functional theory calculations. The mass spectra of the photofragmented clusters reveal an odd-even pattern in the abundances of AgAu<sub><i>N</i>−1</sub><sup>+</sup>, with local maxima for clusters containing an even number of valence electrons, similarly to pure Au<sub><i>N</i></sub><sup>+</sup>. The odd-even pattern, however, disappears upon Pt and Pd doping. Computed dissociation energies agree well with the experimental findings for the different doped clusters. The effect of Ag, Pt, and Pd doping is discussed on the basis of an analysis of the density of states of the <i>N</i> = 3–5 clusters. Whereas Ag delocalizes its 5<i>s</i> valence electron in all sizes, this process is size-specific for Pt and Pd. |
| first_indexed | 2024-12-22T02:18:26Z |
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| language | English |
| last_indexed | 2024-12-22T02:18:26Z |
| publishDate | 2019-04-01 |
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| spelling | doaj.art-f01f08facc184751ad73d122be2ef6702022-12-21T18:42:13ZengMDPI AGApplied Sciences2076-34172019-04-0198166610.3390/app9081666app9081666Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster CationsPiero Ferrari0Ewald Janssens1Laboratory of Solid State Physics and Magnetism, KU Leuven, 3001 Leuven, BelgiumLaboratory of Solid State Physics and Magnetism, KU Leuven, 3001 Leuven, BelgiumThe stability patterns of single silver, platinum, and palladium atom doped gold cluster cations, <i>M</i>Au<sub><i>N</i>−1</sub><sup>+</sup> (<i>M</i> = Ag, Pt, Pd; <i>N</i> = 3–6), are investigated by a combination of photofragmentation experiments and density functional theory calculations. The mass spectra of the photofragmented clusters reveal an odd-even pattern in the abundances of AgAu<sub><i>N</i>−1</sub><sup>+</sup>, with local maxima for clusters containing an even number of valence electrons, similarly to pure Au<sub><i>N</i></sub><sup>+</sup>. The odd-even pattern, however, disappears upon Pt and Pd doping. Computed dissociation energies agree well with the experimental findings for the different doped clusters. The effect of Ag, Pt, and Pd doping is discussed on the basis of an analysis of the density of states of the <i>N</i> = 3–5 clusters. Whereas Ag delocalizes its 5<i>s</i> valence electron in all sizes, this process is size-specific for Pt and Pd.https://www.mdpi.com/2076-3417/9/8/1666metal cluster stabilitydopingelectronic structurephotofragmentation |
| spellingShingle | Piero Ferrari Ewald Janssens Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations Applied Sciences metal cluster stability doping electronic structure photofragmentation |
| title | Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations |
| title_full | Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations |
| title_fullStr | Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations |
| title_full_unstemmed | Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations |
| title_short | Relative Stability of Small Silver, Platinum, and Palladium Doped Gold Cluster Cations |
| title_sort | relative stability of small silver platinum and palladium doped gold cluster cations |
| topic | metal cluster stability doping electronic structure photofragmentation |
| url | https://www.mdpi.com/2076-3417/9/8/1666 |
| work_keys_str_mv | AT pieroferrari relativestabilityofsmallsilverplatinumandpalladiumdopedgoldclustercations AT ewaldjanssens relativestabilityofsmallsilverplatinumandpalladiumdopedgoldclustercations |