Potential drop based model to analyze electrode passivation by fouling from phenolic compounds

Dielectric interface would be formed on the electrode surface during the analysis or disposal of many phenolic compounds due to electro-polymerization. This could cause electrode passivation, also called electrode fouling, which is indicated by the continuously decaying current signal. This paper proposed a model based on the potential drop across the fouling layer, which is helpful for deep understanding of the electrode passivation/fouling process. This model successfully fitted the experimental results.