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The reaction of silver with NO/O2

MPS-Authors
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Zemlyanov,  Dimitry
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Nagy,  Anton J.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Zemlyanov, D., Nagy, A. J., & Schlögl, R. (1998). The reaction of silver with NO/O2. Applied Surface Science, 133(3), 171-183. doi:10.1016/S0169-4332(98)00190-1.


Cite as: https://hdl.handle.net/21.11116/0000-0007-5C07-B
Abstract
Silver foil was studied by X-ray photoelectron spectroscopy (XPS) and ion scattering spectroscopy (ISS) after exposure to a mixture of NO (10 mbar) and O2 (1000 mbar) at 300 K. The reaction of silver with the mixture results in the formation of a complicated `sandwich' structure consisting of superimposed AgNO3 and Ag2O layers on metallic silver. The surface is covered by a silver nitrate layer with a thickness of approximately 5–15 ML. Silver (I) oxide with a thickness of 20–30 ML underlies the AgNO3. This preserves the metallic silver in the bulk from further oxidation. A qualitative analysis of the surface species was carried out with reference to AgNO3, AgNO2 and Ag2O.