heterogeneous diffusion rate constant

in electrochemistry
https://doi.org/10.1351/goldbook.H02805
Defined by the equation: kd=Iln F c A where the
limiting current
Il is assumed to be due to the
diffusion
species of concentration c and of
diffusion coefficient
D. n is the
charge number of the cell reaction
written so that the
stoichiometric
coefficient
of this species is unity. A is usually taken as the geometric area of the electrode, and F is the
Faraday constant
.
Source:
PAC, 1974, 37, 499. (Electrochemical nomenclature) on page 513 [Terms] [Paper]