On the stability of Au(110)-(1 × 2) and -(1 × 3) reconstructed surfaces in 
contact with an aqueous solution

Michaelis, R.; Kolb, Dieter M.

doi:10.1016/0039-6028(90)90554-L

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On the stability of Au(110)-(1 × 2) and -(1 × 3) reconstructed surfaces in contact with an aqueous solution

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Michaelis, R.
Fritz Haber Institute, Max Planck Society;

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Kolb, Dieter M.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Michaelis, R., & Kolb, D. M. (1990). On the stability of Au(110)-(1 × 2) and -(1 × 3) reconstructed surfaces in contact with an aqueous solution. Surface Science, 234(3), L281-L284. doi:10.1016/0039-6028(90)90554-L.

Cite as: https://hdl.handle.net/21.11116/0000-0008-52FB-1

Abstract

The Au(110)-(1 × 2) surface was found to be unaffected in 0.01M HClO4 up to about +0.9 V versus SCE, i.e. the reconstructed surface is stable over the entire double-layer charging region. Oxide formation which starts at +0.95 V versus SCE causes the -superstructure spots in the LEED pattern to gradually disappear, until at an oxygen coverage of about 0.5 monolayers only the fundamental LEED spots are visible. The calcium-induced (1 × 3) reconstruction, on the other hand, was lifted even by the mere contact with the electrolyte, which dissolved the calcium, and was transformed into a (1 × 2) structure.