Abstract
High-resolution electron energy loss spectroscopy has been used to investigate the catalytic properties of Na-doped Au monolayer grown on Cu(111). The presence of Na atoms allows the dissociation of oxygen molecules and the stabilization of atomic oxygen. The strong reduction of the dissociation barrier for O2 promoted by Na could readily favor many surface chemical reactions, due to the key role of atomic oxygen in many oxidation processes catalyzed by gold.
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Antonio Politano has obtained the PhD in Physics at the University of Calabria (Italy) in December 2008.
Gennaro Chiarello (Associate Professor) is a member of the staff of the SPES group (Electronic Spectroscopies of Surfaces) of the Physics Department of the University of Calabria. Their investigation includes the electronic properties of ultrathin alkali and noble-metal films, the chemical reactivity of bimetallic surfaces and alkali coadsorption systems.
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Politanoa, A., Chiarello, G. O2 dissociation in Na-modified gold ultrathin layer on Cu(111). Gold Bull 43, 267–274 (2010). https://doi.org/10.1007/BF03214996
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DOI: https://doi.org/10.1007/BF03214996