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How Does Electrocatalysis Work

So far in this chapter we have looked at a few things about electrode surfaces. Except for Tafel s law, reaction rate as an exponential function of potential, all had some relation to electrocatalysis. I started with Tafel s law because it is the basis of much of the rest for example, when one measures rates, current densities, as a function of potential, d//dx or dlny/dr vary with the mechanism of the reaction, and although several mechanisms have the same d In j/dr (i.e., the coefficient is not diagnostic), several do give values of that parameter, which indicates a specific r.d.s. [Pg.18]

Mind you, like many of the authors of this book, I have the view that the reaction mechanism at the interface is important in electrode kinetics. This outlook originated from the fact that, in my education, I got to study, and become impressed by the breadth of electrode kinetics in the middle region from my earlier study of chemical kinetics.  [Pg.19]

However, and particularly in the United States, there are many who call themselves electrochemists and who take a different view of the optimal region to study. They concentrate on the transport dependent (limiting current) part and are interested more in electroanalysis and less in electrocatalysis. They want to use electrochemical kinetics as an analytical tool (rather than a way to investigate atomic movements in a reaction). Scientists who take the former view in electrode processes have generally originated in the analytical division of their chemistry departments and if you read accounts of the subject stressing that view, you gain much, but not about electrocatalysis.  [Pg.19]


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Electrocatalysis

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