Hydrodynamic electrodes in the study of electrode processes

In Sections 6.3-6.5 expressions for the analysis of the voltammograms corresponding to the simple electron transfer process O + ne-— R, obtained for uniformly accessible electrodes such as the rotating disc electrode, were presented. In this section these expressions will be applied to hydrodynamic electrodes in general. 

In this case non-uniform accessibility has no influence. The equation for the voltammogram is then 

In the general case for a uniformly accessible electrode (/L oc electrode area) 

It has been demonstrated by Matsuda and co-workers in a series of papers16 that is is possible to use, for first-order reactions, approximate expressions for the voltammetric curves of the form 

Values of a and A for various hydrodynamic electrodes are shown in Table 8.2. For these electrodes, graphical analysis of experimental results can follow (8.17), since expressions (8.17) and (8.18) have the same form. 

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