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Type: 
Journal
Description: 
Vibrational spectroscopy has been used to study the interaction at room temperature of H2O with ultrathin alkali films grown on Cu(1 1 1), Ni(1 1 1) and Ag/Ni(1 1 1). We find strongly enhanced dissociation efficiency in the monolayer regime of Na/Cu(1 1 1), indicative of an active role of the existing Na-derived quantum wells in hydrolysis. No water adsorption has been observed for alkalis (Na, K) adsorbed on Ni(1 1 1), very likely due to the absence of electron confinement in these systems. On the other hand, partial water dissociation has been revealed in K-doped silver thin layers on Ni(1 1 1), in the presence of Ag 5sp-derived quantum wells.
Publisher: 
North-Holland
Publication date: 
9 Jul 2010
Authors: 

Antonio Politano, Gennaro Chiarello

Biblio References: 
Volume: 494 Issue: 1-3 Pages: 84-87
Origin: 
Chemical Physics Letters