Ref: P. Parmananda, P. Sherard, R. W. Rollins, and H. D. Dewald, Phys. Rev. E, 47, R3003-R3006 (1993).

CONTROL OF CHAOS IN AN ELECTROCHEMICAL CELL

P. Parmananda, P. Sherard, and R. W. Rollins
Condensed Matter and Surface Sciences Program,
Department of Physics and Astronomy,
Ohio University, Athens, Ohio 45701-2979

H. D. Dewald
Condensed Matter and Surface Sciences Program,
Department of Chemistry,
Ohio University, Athens, Ohio 45701-2979

Abstract

We report control of chemical chaos observed during the electrodissolution of a rotating copper disc in a sodium acetate/acetic acid buffer. An adaptation of a simple recursive proportional-feedback control strategy, generally applicable to systems well described by one-dimensional maps, was used to stabilize the chaotic response of the system on an unstable period-one orbit. The successive minima in the measured anodic current generated a return map that was used to characterize the dynamics and the control algorithm prescribed small changes in the anodic potential to affect the control.

PACS numbers: 05.45.+b, 87.10.+e


Ref: P. Parmananda, P. Sherard, R. W. Rollins, and H. D. Dewald, Phys. Rev. E, 47, R3003-R3006 (1993).


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