A study of the adsorption of chloride ions at ruthenium electrodes

G. Horányi, E. M. Rizmayer

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Adsorption of labelled Cl- ions was studied at a ruthenium electrode in 1 mol dm-3 H2SO4 supporting electrolyte. Electrodes were obtained by electrodeposition of Ru3+ ions on a thin gold layer. Potential dependence of the adsoprtion was studied over a wide potential range (-200-+1400 mV on the RHE scale). It has been shown that features observed on the Γ vs. E curves (maximum at E = 200 mV, no potential depedence of the adsorption above E = 800 mV, hysteresis phenomena) can be explained by the formaton of Hads and Oads species described in the literature. The effect of H3PO4 and HClO4 on the adsorption was stude by the case of HClO4 new evidence was furnished that this species suffers a slow reductive transformation at Ru electrodes.

Original languageEnglish
Pages (from-to)199-208
Number of pages10
JournalJournal of Electroanalytical Chemistry
Volume181
Issue number1-2
DOIs
Publication statusPublished - Dec 24 1984

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Ruthenium
Chlorides
Ions
Adsorption
Electrodes
Electrodeposition
Gold
Electrolytes
Hysteresis

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

A study of the adsorption of chloride ions at ruthenium electrodes. / Horányi, G.; Rizmayer, E. M.

In: Journal of Electroanalytical Chemistry, Vol. 181, No. 1-2, 24.12.1984, p. 199-208.

Research output: Contribution to journalArticle

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