Using density functional theory (DFT) and thermodynamic considerations we
study the shape and stability of Pd nanoparticles in oxygen-lean and oxygen-
rich atmospheres. We find that at very high oxygen coverage cubes exposing
(100) faces will form, which are stabilized due to the formation of a Image
o/√(5) x √(5)R27° overlayer. The shape of oxygen-covered Pd and Pt
nanoparticles is compared in this study
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