A novel combined electrochemical oscillator from cathode and anode in the IO3-/Fe(CN)(6)(4-) system

Experimental studies have been performed for the simultaneous potential or current oscillations occurring both on cathode and anode in the IO3-/Fe(CN) (6)(4-) system. The combined oscillator exhibits very different behavior fr om that of the individual oscillators on each electrode owing to the differ ent waveforms and incommensurate oscillating frequencies of the individual oscillators. The potential oscillation of the combined oscillator is essent ially a sum of those of the individual oscillators for the mixed system, wh ereas the sum coming from the single systems is slightly different, mainly due to the difference in ionic strength between the single system and the m ixed system. The separate current oscillators also seem to interfere with e ach other, probably through the restricted distribution of the applied volt age in both electrodes and the ohmic drop in addition to the effect of ioni c strength (C) 2000 Elsevier Science S.A. All rights reserved.