Abstract

The Gouy-Chapman (GC) theory of an electrified interface is widely used to interpret experimental electrochemical results even though its results must be parameterized empirically to agree with experiment. As a result, experiment cannot provide a useful test of the validity of the GC theory. In contrast, computer simulations are exceedingly useful for testing a theory. Recently, we have embarked on a systematic computer simulation study of the electrochemical interface and the applicability of the GC theory as well as other more modern theories. Sadly, all theories fail when the ionic coupling is strong. Our simulations as well as our partial success in developing a new theory that is successful for strong ionic coupling is reviewed.

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