Measurement of sorption equilibria under isosteric conditions -: The principles, advantages and limitations

被引：52

作者：

Bülow, M ^{[1
]}

Shen, DM ^{[1
]}

Jale, S ^{[1
]}

机构：

[1] BOC Proc Plants Technol, Murray Hill, NJ 07974 USA

来源：

APPLIED SURFACE SCIENCE | 2002年 / 196卷 / 1-4期

关键词：

sorption isosteres; thermodynamic functions; zeolites; carbonaceous sorbents; Monte Carlo simulations; phase transitions; atmospheric gases;

D O I：

10.1016/S0169-4332(02)00052-1

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 development of the sorption-isosteric method (SIM) with minimum dead volume for a direct measurement of sorption heats is reviewed. Advantages and limitations of the technique are illustrated by concentration dependencies of the isosteric sorption heat for a series of gas-nanoporous-sorbent systems, several of which are discussed in the light of molecular simulation results. The technique is useful and effective in obtaining highly accurate thermodynamic data for sorption of gases by nanoporous materials. These properties are accessible as functions of sorption-phase concentration up to its saturation value. They serve for a calculation of sorption equilibria over wide ranges of temperature and pressure irrespective of phase transitions that may occur in the system. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：157 / 172

页数：16

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