Fractal dimension of microporous carbon on the basis of Polanyi-Dubinin theory of adsorption. Part IV. The comparative analysis of two alternative solutions of the overall adsorption isotherm equation for microporous fractal solids

被引：39

作者：

Terzyk, AP ^{[1
]}

Gauden, PA ^{[1
]}

Rychlicki, G ^{[1
]}

Wojsz, R ^{[1
]}

机构：

[1] Nicholas Copernicus Univ, Dept Chem, Physicochem Carbon Mat Res Grp, PL-87100 Torun, Poland

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 152卷 / 03期

关键词：

adsorption; active carbon; adsorption thermodynamics; fractal dimension; microporosity; potential theory; pore diameter;

D O I：

10.1016/S0927-7757(98)00833-4

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：

The comparative analysis of two alternative adsorption isotherm equations, i.e. approximate (proposed by Avnir and Jaroniec) and analytical solutions (developed by us and called FRDA equation) of the global adsorption isotherm on microporous fractal solids is presented. The general conclusion is that if adsorption proceeds by a micropore filling mechanism and the pore size distribution is assumed to be Pfeifer and Avnir function, not only the adsorption value but also the process energetics cannot be correctly described by simpler-however generating some erroneous results-approximated isotherm equations and the corresponding thermodynamical formulas, proposed by Avnir, Jaroniec et al. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：293 / 313

页数：21

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