Chemical Reactions at Clean and Alkali-Doped Mismatched Metal/Metal Interfaces

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• 作者：Antonio Politano ; Vincenzo Formoso ; Gennaro Chiarello
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：January 8, 2009
• 年：2009
• 卷：113
• 期：1
• 页码：316-320
• 全文大小：153K
• 年卷期：v.113,no.1(January 8, 2009)
• ISSN：1932-7455

文摘

High-resolution electron energy loss spectroscopy has been used to study CO adsorption on clean and alkali-modified Ag single layers deposited on Ni(111) and Cu(111) surfaces. An increasing of the CO dissociation rate was obtained for the alkali-doped Ag/Ni(111) interface. On the contrary, for a monolayer of Ag on Cu(111), alkali adsorption causes an increasing of the CO dissociation barrier. For higher Ag thickness (10 layers), the alkali-modified surface strongly reacts with water molecules.