Electrocatalytic reduction of ClO4- ions at an electrodeposited Re layer

I. Bakos, G. Horányi, S. Szabó, E. M. Rizmayer

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Abstract

The reduction of ClO4- ions was studied in an acid medium at Re layers electrodeposited onto Pt and Au supports from ReO4--containing supporting electrolytes. It was shown that the electroreduction leading to the formation of Cl- ions takes place in a relatively wide potential range (0-300 mV /RHE); however, no real steady state polarization measurements could be carried out owing to the self-inhibition caused by adsorption of the reduction product (Cl- ion) and the change of the surface state of the electrode. The role of the competitive adsorption of anions was demonstrated by a radiotracer study of the adsorption of labelled HSO4- ions. The problems connected with the interpretation of the experimental results are discussed.

Original languageEnglish
Pages (from-to)241-252
Number of pages12
JournalJournal of Electroanalytical Chemistry
Volume359
Issue number1-2
DOIs
Publication statusPublished - Nov 15 1993

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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