Abstract
The use of absolute rate theory to predict rates of electrode reactions is discussed. It is shown that the rate of reaction at an electrode can be calculated from first principles if the absolute single electrode potential and its temperature coefficient are known. The single electrode potential can indeed be calculated and therefore used to predict the exchange current density for any electrode reaction. Exchange current densities calculated from first principles for various mechanisms in the oxygen and hydrogen evolution reactions are in good agreement with the presently accepted mechanisms.
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