Author/Authors :
Zheng، نويسنده , , Jian and Agnoli، نويسنده , , Stefano and Artiglia، نويسنده , , Luca and Sedona، نويسنده , , Francesco and Di Marino، نويسنده , , Marco and Sambi، نويسنده , , Mauro and Granozzi، نويسنده , , Gaetano، نويسنده ,
Abstract :
UHV evaporation of Sn on (1 × 2) Pt(110), followed by UHV annealing, provides three different PtSn/Pt(110) surface alloys, each characterized by a specific low energy electron diffraction (LEED) and scanning tunneling microscopy (STM) pattern. When annealed in a controlled oxygen background, the PtSn/Pt(110) surface alloys can be transformed into SnOx/Pt(110) nano-oxides. This paper reports the experimental phase diagram of the metallic and oxidized surface superstructures.
Keywords :
PtSn surface alloy , phase diagram , Model electrocatalysts , SnOx nano-oxides
