The study of kinetics by steady-state measurements

The ece-type reaction scheme is shown in general terms in the equations 

Amatore and Saveant [19] have identified three limiting cases of this scheme, viz. 

At one time, all reactions of this type were thought to proceed via the ece 

As we did earlier, we will start by considering the behaviour of a spherical electrode. For an ece reaction with a first-order chemical step, the steady-state diffusion-limited current density is given by [20] 

An alternative way of expressing this is as the apparent number of electrons involved and this is given by 

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