charge-transfer step

of an electrode reaction
https://doi.org/10.1351/goldbook.C01007
An elementary step in which charge is transferred from one phase to the other.
Source:
PAC, 1980, 52, 233. 'Electrode Reaction Orders, Transfer Coefficients and Rate Constants. Amplification of Definitions and Recommendations for Publication of Parameters' on page 235 (https://doi.org/10.1351/pac198052010233)