cathodic transfer coefficient, αc 

https://doi.org/10.1351/goldbook.C00906
For a reaction with a single rate-determining step αcν=−R Tn F (∂(ln⁡(|Ic|))∂E)T,p,ci,... where αc is the cathodic transfer coefficient (number), R is the gas constant, T is the thermodynamic temperature, and ν the stoichiometric number giving the number of identical activated complexes formed and destroyed in the completion of the overall reaction as formulated with the transfer of n electrons.
Source:
PAC, 1974, 37, 499. (Electrochemical nomenclature) on page 515 [Terms] [Paper]
Citation: 'cathodic transfer coefficient' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.C00906 RIS BibTex EndNote
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Last revised: February 24, 2014