A NEW APPROACH TO ANALYSIS OF MULTILAYER ADSORPTION

被引：58

作者：

ARANOVICH, GL ^{[1
]}

DONOHUE, MD ^{[1
]}

机构：

[1] JOHNS HOPKINS UNIV,DEPT CHEM ENGN,BALTIMORE,MD 21218

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1995年 / 173卷 / 02期

关键词：

D O I：

10.1006/jcis.1995.1353

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：

A new approach to the analysis of vapor adsorption on solids is proposed. In this method the adsorption isotherm is represented as a(p) = f(p)/(1-p/p(s))(d) where a(p) is the amount of vapor adsorbed, p is the pressure, p(s) is the saturation vapor pressure, f(p) is a function describing the adsorption in the first molecular layer, and d is an adjustable parameter. This model allows one to determine the specific surface area of disperse and porous materials in a way that is not limited by the functional form of the monolayer adsorption isotherm, f(p). In addition, this equation gives a new way to correlate adsorption data over the whole range of p/p(s). Comparison is made with experimental data for the systems Ar-KCl, N-2-KCl, O-2-KCl, N-2-SiO2, and N-2-Al2O3. (C) 1995 Academic Press, Inc.

引用

页码：515 / 520

页数：6

共 21 条

[11] IMPROVEMENT OF METHODS FOR SURFACE-AREA DETERMINATIONS [J].

KARNAUKHOV, AP .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1985, 103 (02) :311-320

[12] THE ADSORPTION OF NITROGEN, ARGON, AND OXYGEN ON POTASSIUM CHLORIDE AT 78-90-DEGREES-K [J].

KEENAN, AG ;

HOLMES, JM .

JOURNAL OF PHYSICAL AND COLLOID CHEMISTRY, 1949, 53 (09) :1309-1320

[13] The constitution and fundamental properties of solids and liquids Part I Solids [J].

Langmuir, I .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1916, 38 :2221-2295

[14] THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM. [J].

Langmuir, Irving .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1918, 40 :1361-1403

[15] STUDIES ON PORE SYSTEMS IN CATALYSTS .1. THE ADSORPTION OF NITROGEN - APPARATUS AND CALCULATION [J].

LIPPENS, BC ;

LINSEN, BG ;

DEBOER, JH .

JOURNAL OF CATALYSIS, 1964, 3 (01) :32-37

[16] Theories of the adsorption of gases. A general survey and some additional remarks. Introductory paper to section III. [J].

Polanyi, M .

TRANSACTIONS OF THE FARADAY SOCIETY, 1932, 28 :0316-0332

[17]

POLANYI M, 1914, VERHANDL DEUT PHYSIK, V16, P1012

[18] REPORTING PHYSISORPTION DATA FOR GAS SOLID SYSTEMS WITH SPECIAL REFERENCE TO THE DETERMINATION OF SURFACE-AREA AND POROSITY (RECOMMENDATIONS 1984) [J].

SING, KSW ;

EVERETT, DH ;

HAUL, RAW ;

MOSCOU, L ;

PIEROTTI, RA ;

ROUQUEROL, J ;

SIEMIENIEWSKA, T .

PURE AND APPLIED CHEMISTRY, 1985, 57 (04) :603-619

[19] THERMODYNAMICAL CORRECTNESS OF GAS-SOLID ADSORPTION-ISOTHERM EQUATIONS [J].

TOTH, J .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1994, 163 (02) :299-302

[20]

TOTH J, 1971, ACTA CHIM HUNG, V69, P311

← 1 2 3 →