Enhancement of hydrolysis in alkali ultrathin layers on metal substrates in the presence of electron confinement
作者： Antonio Politano , Gennaro Chiarello
DOI: 10.1016/J.CPLETT.2010.05.089
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摘要: Abstract Vibrational spectroscopy has been used to study the interaction at room temperature of H 2 O 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 monolayer regime Na/Cu(1 1 1), indicative an active role existing Na-derived quantum wells hydrolysis. No water adsorption observed for alkalis (Na, K) adsorbed Ni(1 1 1), very likely due absence electron confinement these systems. On other hand, partial revealed K-doped silver thin layers presence Ag 5sp-derived wells.
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