An Alternative Electrode System for Monitoring Belousov-Zhabotinsky Chemical Oscillations

Authors

  • David T. Win
  • Myint Myint Than
  • Myint Myint Aye

Keywords:

Chemical oscillation, Belousov-Zhabotinsky systems, alternative electrode system, cerium (IV), ferroin, manganese(II), oscillation characteristics, oscillation monitor, SCE/Pt electrode system, Cu/Pt electrode system, electrical switches

Abstract

The capability of copper-platinum (Cu/Pt) electrode system as a BelousovZhabotinsky (BZ) chemical oscillation monitor was compared with that of the normally used SCE/Pt electrode system, by testing it on three BZ systems, which were obtained by varying the oscillator in the combination bromate, oscillator and malonic acid. The oscillators, used separately, were cerium(IV), manganese(II) and ferroin [iron (II)-1,10- phenanthroline complex].

Cu/Pt electrode gave essentially identical values of oscillation characteristics (oscillation period, peak potential, induction period, peak width) except peak potentials. This indicated that the Cu/Pt electrode system would be more useful than the SCE/Pt electrode system (which had chloride leakage problem), in electrical applications of chemical oscillations, such as electrical switches, which would depend only on the on/off frequency.

Author Biography

David T. Win

Faculty of Science and Technology, Assumption University Bangkok, Thailand

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Issue

Vol. 5 No. 3 (2002): January 2002

Section

Articles