Fractal analysis of size effects and surface morphology effects in catalysis and electrocatalysis

被引：4
作者：
Avnir, D. [1 ,2 ]
Carberry, J. J. [3 ]
Citri, O. [1 ]
Farin, D. [1 ]
Graetzel, M. [2 ]
McEvoy, A. J. [2 ]
机构：
[1] Hebrew Univ Jerusalem, Dept Organ Chem, IL-91904 Jerusalem, Israel
[2] Ecole Polytech Fed Lausanne, Inst Chim Phys, CH-1015 Lausanne, Switzerland
[3] Univ Notre Dame, Dept Chem Engn, Notre Dame, IN 46556 USA
来源：
CHAOS | 1991年 / 1卷 / 04期
关键词：
D O I：
10.1063/1.165850
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Fractal geometry tools are used in order to analyze several related problems in surface science, catalysis, and electrocatalysis. The effects of complex morphologies of adsorbents, catalysts, and electrodes on various molecular processes with these materials are determined both theoretically and experimentally. It is shown that fractal geometry provides a convenient and natural tool for the elucidation of geometry-performance relations in heterogeneous chemistry. Issues covered are particle size effects in physisorption and chemisorption; morphology effects on a variety of catalytic processes with unsupported catalysts (including coal liquefaction, alkene polymerizations, oxidations, dehydrogenations, and esterifications); surface accessibility effects on molecular interactions in an Eley-Rideal mechanism; surface patterning effects on concentration profiles near the surface; and electrode-morphology effects on a variety of electrochemical and electrocatalytic, processes. The domain of applicability of the fractal approach to these problems is discussed.
引用
收藏
页码：397 / 410
页数：14
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