How can changing electrode potential change the rate of oxidation?

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In an electrochemical reaction, the rate of oxidation can be manipulated by adjusting the electrode potential.

When the electrode potential is made more positive, the number of particles ready to give away electrons increases, which in turn increases the rate of the oxidation process. Conversely, making the potential more negative increases the number of electrons available in the metal to tunnel to ions, thereby increasing the rate of the reduction process and decreasing the rate of oxidation.1

Quantitatively, there is an exponential proportionality between the rate of an electrochemical reaction and the electrode potential. This relationship is defined by the transfer coefficients, which act as influence factors in the exponential dependence of the reaction rate on the potential. Ultimately, the net rate of the reaction is determined by the difference between the partial current densities of oxidation and reduction, both of which are influenced by the electrode potential and the concentration of the reacting species.12