Jn. Chazalviel et V. Fleury, MODELING OF METAL ELECTRODEPOSITS - ANALYTICAL SOLUTIONS - COMMENT, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 54(4), 1996, pp. 4480-4481
When the equations of ionic motion for electrodeposition in a one-dime
nsional cell filled with a dilute binary electrolyte are solved under
fixed-boundary conditions, a diffusion-limited current, independent of
applied potential, is obtained. This result is well expected in the f
ramework of the quasineutrality approximation. In this framework, the
assumption by Huang and Hibbert [Phys. Rev. E. 52, 5065 (1995)] of an
electrical-migration term in the evolution equation for the concentrat
ion is incorrect. However, a term of the same form, though smaller, ma
y appear either from the concentration dependence of the mobilities or
from an electroosmotic effect if the electrolyte is embedded in a gel
or a porous medium.