Physics of Solid Surfaces pp 907-907 | Cite as
Hydrohalic acid anion interaction with gold surfaces: Au(110) – bromide
Chapter
Abstract
In this chapter the experimental results on adsorption of bromide ion on Au(110) surface is described.
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In 0.05 M KClO4 + 0.01 M KBr solution between −0.4 V and −0.2 V (SCE), the Au (110) reconstruction is lifted, and at 0.15–0.02 V (SCE), ordered Br layers are found, namely, a (3 × 1) (θBr = 0.66 ML) and a (4 × 1) (θBr = 0.75 ML). Instead of the latter, a quasi-hexagonal structure of the same coverage has also been observed. At positive potentials Au-halide complexes are formed such as AuBr2 [1, 2].
Symbols and abbreviations
| Short form | Full form |
|---|---|
| SCE | saturated calomel electrode |
| ML | monolayer |
References
- 1.Zou, S., Gao, X., Weaver, M.J.: Surf. Sci. 452, 44 (2000)ADSCrossRefGoogle Scholar
- 2.Giancarlo, L.C., Flynn, G.W.: Annu. Rev. Phys. Chem. 49, 297 (1998)ADSCrossRefGoogle Scholar
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