Platinum entrainment

For electrical coupling, large-area platinum electrodes are placed in each of the reactors to be coupled, and their circuit is completed by a wire between the electrodes and by an ion-bridge between the two reactors. Several phenomena such as entrainment, quasi-periodicity and chaos have been observed in such oscillations [55],... 

Figure 12.7 Experimental traces of platinum (Pt) electrode potential in a physically coupled BZ oscillator experiment. Bottom trace is potential VI from reactor 1 middle trace is potential V2 from reactor 2, shifted up by 200 mV. Top trace is (VI — V2)/2, and is shifted so that 0 mV corresponds to 450 mV on the millivolt axis. 0-20 min uncoupled oscillations, p 0 23-45 min out-of-phase entrainment, p = 0.5 45-60 min in-phase entrainment, p = 0.75. (Adapted from Crowley and Epstein, 1989.)...

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