Abstract
AN enhanced diffusion process occurs when an electric field is superimposed on a diffusion experiment which is being carried out with a system composed of chemically interacting electrolyte species1,2. This phenomenon, known as electrodiffusion, resembles ordinary diffusion in its phenomenological manifestations. The process can be described mathematically by a differential equation entirely similar to Fick's second law: 
where c, t and De represent respectively the concentration, time and the electrodiffusion coefficient, the characteristic parameter of the process.
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BREUER, M. Isotope Separation by Electrodiffusion. Nature 194, 281–282 (1962). https://doi.org/10.1038/194281a0
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DOI: https://doi.org/10.1038/194281a0
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