Abstract
In the present work, for the first time, ultrafast dynamics of recombinative desorption of molecular oxygen (O adsorbed + O adsorbed = O 2,gas ) from the Pd(1 1 0) single crystal surface has been explored using the femtosecond two-pulse correlation spectroscopy. The time scale of this reaction is found to be ~1 picosecond. Theoretical simulation predicts important role of the hot electrons in this surface chemical reaction.
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