Redox potential chains, gold surface

Chronoamperometric curves have been used as a standard tool to obtain values of the rate constants of surface-bound molecules and they prove as very useful for validating the Marcus-Hush s formalist, and, indeed, the experimental application of the MH theory to electrode processes has been mainly carried out with surface-bound redox systems. Thus, Chidsey studied the oxidation of ferrocene groups connected to a gold electrode by means of a long alkylthiol chain by using Single Potential Pulse Chronoamperometry (see examples of the experimental responses in Fig. 6.21) [43]. 

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