Kinetics of diffusion-limited adsorption on fractal surfaces

Alon Seri-Levy; David Avnir

doi:10.1021/j100142a019

Kinetics of diffusion-limited adsorption on fractal surfaces

Alon Seri-Levy, David Avnir^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Delahay's equation for adsorption kinetics on flat electrodes is extended to fractally rough morphologies. The distance of diffusion term in Delahay's equation, (script Dt)^1/2, where script D is the diffusion coefficient and t is time, is generalized to (script Dt)^{(3-script D)/2}, where D is the surface fractal dimension. The generalized equation is verified by the use of Monte Carlo computer simulations. The results are applicable not only to electrochemistry but also to any chemical heterogeneous system which is governed by Henry's law of adsorption.

Original language	English
Pages (from-to)	10380-10384
Number of pages	5
Journal	Journal of Physical Chemistry
Volume	97
Issue number	40
DOIs	https://doi.org/10.1021/j100142a019
State	Published - 1993

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Kinetics of diffusion-limited adsorption on fractal surfaces

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