## heterogeneous diffusion rate constant

in electrochemistry
https://doi.org/10.1351/goldbook.H02805
Defined by the equation: $k_{\text{d}}=\frac{I_{\text{l}}}{n\ F\ c\ A}$ where the @L03532@ $$I_{\text{l}}$$ is assumed to be due to the @D01716@ species of concentration $$c$$ and of @D01719@ $$D$$. $$n$$ is the @C00995@ written so that the @S06021@ @C01124@ of this species is unity. $$A$$ is usually taken as the geometric area of the electrode, and $$F$$ is the @F02325@.
Source:
PAC, 1974, 37, 499. (Electrochemical nomenclature) on page 513 [Terms] [Paper]