Reactivity of supported platinum nanoclusters studied by in situ GISAXS: clusters stability under hydrogen

This paper is an initial study of the reactivity and thermal stability of atomic platinum clusters supported on Al2O3/SiO2/Si(100) as a function of the thickness of the alumina film and presence of hydrogen. Extremely high thermal stability of Pt7-10 clusters in vacua as well as in the presence of hydrogen is observed on SiO2/Si(100) coated with six cycles of Al2O3 film prepared by an atomic layer deposition technique.