Surface chemistry of Cu in the presence of CO2 and H2O

The chemical nature of copper and copper oxide (Cu 2O) surfaces in the presence of CO 2 and H 2O at room temperature was investigated using ambient pressure X-ray photoelectron spectroscopy. The studies reveal that in the presence of 0.1 torr CO 2 several species form on the initially clean Cu, incl...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1991. - 24(2008), 17 vom: 02. Sept., Seite 9474-8
1. Verfasser: Deng, Xingyi (VerfasserIn)
Weitere Verfasser: Verdaguer, Albert, Herranz, Tirma, Weis, Christoph, Bluhm, Hendrik, Salmeron, Miquel
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The chemical nature of copper and copper oxide (Cu 2O) surfaces in the presence of CO 2 and H 2O at room temperature was investigated using ambient pressure X-ray photoelectron spectroscopy. The studies reveal that in the presence of 0.1 torr CO 2 several species form on the initially clean Cu, including carbonate CO 3 (2) (-), CO 2 (delta-) and C (0), while no modifications occur on an oxidized surface. The addition of 0.1 ML Zn to the Cu results in the complete conversion of CO 2 (delta-) to carbonate. In a mixture of 0.1 torr H 2O and 0.1 torr CO 2, new species are formed, including hydroxyl, formate and methoxy, with H 2O providing the hydrogen needed for the formation of hydrogenated species 
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700 1 |a Verdaguer, Albert  |e verfasserin  |4 aut 
700 1 |a Herranz, Tirma  |e verfasserin  |4 aut 
700 1 |a Weis, Christoph  |e verfasserin  |4 aut 
700 1 |a Bluhm, Hendrik  |e verfasserin  |4 aut 
700 1 |a Salmeron, Miquel  |e verfasserin  |4 aut 
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