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Slow transformation phenomena of lead adsorbates on electrolytically grown Ag(111) and Ag(100) electrode surfaces

✍ Scribed by T. Vitanov; A. Popov; G. Staikov; E. Budevski; W.J. Lorenz; E. Schmidt

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 481 KB
Volume: 31
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(86)80013-5

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✦ Synopsis

Previous study of underpotential deposits of Pb and Tl on chemically polished Ag(l11) substrates has shown that under certain conditions slow structural transformations in the submonolayer coverage take place. Voltammetric measurements taken by us on electrolytically grown Ag(ll1) and Ag(100) electrodes reveal new features of the Pb-adsorbates. The rate of structural transformations on Ag( 111) increases with the step density. This effect is not observed on Ag(100) but kinetics limitations attend the formation of the adsorbate. An attempt is made to explain these phenomena.

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