Thermodynamics of adsorption on microporous fractal solids

被引：6

作者：

Gauden, PA ^{[1
]}

Rychlicki, G ^{[1
]}

Terzyk, AP ^{[1
]}

Wojsz, R ^{[1
]}

机构：

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

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1998年 / 54卷 / 01期

关键词：

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

D O I：

10.1023/A:1010130700112

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A new adsorption isotherm equation based on the extension of the potential theory of adsorption on microporous fractal solids and corresponding thermodynamic functions were formulated and applied for description of the experimental data of adsorption on a microporous carbon. The comparison of the obtained results with the original Dubinin-Astakhov equation is presented. In this paper the dependence of thermodynamic functions (the differential molar enthalpy of adsorption Delta H and the differential molar entropy of adsorption Delta S) on the fractal dimension D are discussed, as well.

引用

页码：351 / 361

页数：11

共 24 条

[1] SPECIFICITY IN PHYSICAL SORPTION [J].

BARRER, RM .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1966, 21 (04) :415-&

[2] GENERALIZATION OF THE THEORY OF VOLUME FILLING OF MICROPORES TO NONHOMOGENEOUS MICROPOROUS STRUCTURES [J].

DUBININ, MM .

CARBON, 1985, 23 (04) :373-380

[3] HOMOGENEOUS AND HETEROGENEOUS MICROPORE STRUCTURES IN CARBONACEOUS ADSORBENTS [J].

DUBININ, MM ;

STOECKLI, HF .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1980, 75 (01) :34-42

[4]

DUBININ MM, 1966, IAN SSSR KH, V4, P610

[5]

DUBININ MM, 1975, ADSORPTION POROSITY

[6]

DUBININ MM, 1966, IAN SSSR KH, V9, P1507

[7]

DUBININ MM, 1966, IAN SSSR KH, V5, P793

[8]

Gregg S. J., 1982, ADSORPTION SURFACES

[9] THERMODYNAMICS OF GAS-ADSORPTION ON FRACTAL SURFACES OF HETEROGENEOUS MICROPOROUS SOLIDS [J].

JARONIEC, M ;

LU, XC ;

MADEY, R ;

AVNIR, D .

JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (12) :7589-7595

[10] CORRELATION BETWEEN MICROPOROSITY AND FRACTAL DIMENSION OF ACTIVE CARBONS [J].

JARONIEC, M ;

GILPIN, RK ;

CHOMA, J .

CARBON, 1993, 31 (02) :325-331

← 1 2 3 →