Institute for Mathematics and Its Applications
Katarina Krischer, Fritz-Haber Institute
In many electrochemical systems, patterns were observed that cannot be understood in the framework of `traditional' reaction-diffusion systems. These experiments will be reviewed. In general, the patterns result from the interaction of reaction term, non-local coupling through the electrolyte and (positive or negative) global coupling originating from the operation mode (constant voltage or constant current condition). Different combinations of these three `ingredients' give rise to a variety of dispersion relations, and thus divers dynamic behaviors. The interplay of the different coupling types explains the experimental observations.