Theoretical Calculations of the Separation Factors in the Hydrogen Evolution Reaction for the Slow Electrochemical Desorption Mechanism

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Abstract
Separation factors for the slow electrochemical desorption mechanism at low and intermediate overpotentials are calculated for Ni. The values are distinctly separated from those for all other mechanisms. The results are consistent with variation of percentage coulombic energy of all interactions. The separation factor method alone cannot be used to distinguish between either of the rate‐determining steps in a linked discharge electrochemical desorption mechanism. A knowledge of the degree of coverage is also required.

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