RRDE experiments with potential scans at the ring and disk electrodes

S. Vesztergom, M. Újvári, G. Láng

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The electrochemical reduction of the surface layer of gold oxide in sulfuric acid solutions has been investigated. Our interest in the problem arose in connection with the development and testing of an electrochemical measuring system with rotating gold disk-gold ring electrodes. With the help of the new system independent and dynamic potential programs can be applied simultaneously to the disk and the ring electrodes. By applying the "phase-shifted double cyclic voltammetry" method it could be shown that the reduction of the surface oxide layer of the polycrystalline gold disk immersed into sulfuric acid solutions is accompanied by the formation of soluble, electroreducible gold species which can be detected on the ring electrode.

Original languageEnglish
Pages (from-to)378-381
Number of pages4
JournalElectrochemistry Communications
Volume13
Issue number4
DOIs
Publication statusPublished - Apr 2011

Fingerprint

Gold
Electrodes
Sulfuric acid
Experiments
Oxides
Cyclic voltammetry
Testing
sulfuric acid

Keywords

  • Cyclic voltammetry
  • Gold
  • Ring-disk electrode

ASJC Scopus subject areas

  • Electrochemistry

Cite this

RRDE experiments with potential scans at the ring and disk electrodes. / Vesztergom, S.; Újvári, M.; Láng, G.

In: Electrochemistry Communications, Vol. 13, No. 4, 04.2011, p. 378-381.

Research output: Contribution to journalArticle

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