Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 114, Issue 5, Pages 2220-2226Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp909592s
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Funding
- Governments of Poland
- Region of Wallonia
- Fond de la Recherche Scientifique (FNRS) of Belgium [2451408]
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The oxygen-induced faceting of [111] and [100] oriented Pd nanosized crystals (tips) was studied by field ion microscopy (FIM). Annealing at temperatures of 500 K in the presence of submonolayer amounts of oxygen caused major reconstruction to occur. Regions of the {100} plane broke up into small {100}, {112}, and {012} facets. In addition, only {111} and significantly enlarged {011} facets occurred at the surface of the reconstructed Pd crystal. The faceting behavior is in accordance with recently calculated equilibrium shapes of Pd crystals in the presence of small amounts of adsorbed oxygen.
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