KINETICS OF DIFFUSION-LIMITED ADSORPTION ON FRACTAL SURFACES

被引：24
|
作者：
SERILEVY, A
AVNIR, D
机构：
[1] HEBREW UNIV JERUSALEM, DEPT ORGAN CHEM, IL-91904 JERUSALEM, ISRAEL
[2] HEBREW UNIV JERUSALEM, F HABER RES CTR MOLEC DYNAM, IL-91904 JERUSALEM, ISRAEL
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 40期
关键词：
D O I：
10.1021/j100142a019
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Delahay's equation for adsorption kinetics on flat electrodes is extended to fractally rough morphologies. The distance of diffusion term in Delahay's equation, (Dt)1/2, where D is the diffusion coefficient and t is time, is generalized to (Dt)(3-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.
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页码：10380 / 10384
页数：5
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