The Cottrell Experiment and Diffusion Limitation 3/3

In this chapter the electrochemical double layer and its features are discussed. The electrochemical double layer acts as a capacitor and every change in the potential of the electrode will induce a capacitive charging current that is caused by physics not by a chemical reaction. This current decays exponentially. 

Figure 1.1: Cottrell experiment in KCl solution with

Cyclic voltammetry and chronoamperometry: mechanistic tools for organic electrosynthesis - Chemical Society Reviews (RSC Publishing) DOI:10.1039/D2CS00706A

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Basic potential step and sweep methods

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Cottrell equation - Wikipedia

Conventional representation of the Cottrell diffusion ͑ current, I ( t

Cyclic voltammetry and chronoamperometry: mechanistic tools for organic electrosynthesis - Chemical Society Reviews (RSC Publishing) DOI:10.1039/D2CS00706A

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