On the Problem of Bromide Control in a Tl3+-perturbed Belousov-Zhabotinsky Oscillator

Szilvia Muranyi, Z. Noszticzius

Research output: Contribution to journalArticle

Abstract

It is shown that Tl3+ as a bromide removing perturbant of the BZ oscillators is superior to Ag + in several aspects. A most important advantage is that the upper limit of the actual Br concentration can be calculated from the potential of a bromide selective electrode in the presence of the corrosive Tl3+ ions. Experimental potentiometrie traces of a bromide selective electrode in a Tl3+ perturbed BZ system show that the Br-concentration stays much below its critical concentration during the oscillations. These observations suggest that free Br-is not the critical intermediate formed during reduction of Ce4+ and responsible for the negative feedback associated with the oscillations.

Original languageEnglish
Pages (from-to)605-613
Number of pages9
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume47
Issue number4
DOIs
Publication statusPublished - Apr 1 1992

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Bromides
bromides
oscillators
Electrode
Oscillation
Caustics
negative feedback
oscillations
Electrodes
Negative Feedback
electrodes
Perturbed System
guy wires
Trace
Ions
Feedback
ions

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Mathematical Physics
  • Physics and Astronomy(all)

Cite this

On the Problem of Bromide Control in a Tl3+-perturbed Belousov-Zhabotinsky Oscillator. / Muranyi, Szilvia; Noszticzius, Z.

In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences, Vol. 47, No. 4, 01.04.1992, p. 605-613.

Research output: Contribution to journalArticle

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