Passivation of Silver and Current Oscillations During Anodic Dissolution of Silver in H2SO4+Ag+Solutions

• Autorzy: Dolata M. , Kędzierzawski P.
• Języki publikacji: EN

Abstrakty

EN

We report the first observation of silver electrode passivation during anodic dissolution in sulphuric acid electrolytes. The passivation is of a salt type. Preliminary observations of nonlinear effects in this system: current oscillations and multiperiodic cyclic voltammograms are also presented. Microscopic inspection revealed, that during dissolution of the electrode, silver powder accumulates at the surface. Observed oscillations have a strong transient character, presumably resulting from the modification of diffusion conditions by powder accumulation.

Słowa kluczowe

EN

silver passivation; current oscillations; anodic dissolutions; salt passivation; multiperiodic voltammograms

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2003
• Tom: Vol. 77 / nr 9
• Strony: 1199--1206
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Dolata M.

• Institute of Physical Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

autor

Kędzierzawski P.

• Institute of Physical Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

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