Generalized statistical description of adsorption of polyatomics

被引：7
|
作者：
Riccardo, JL [1 ]
Romá, F [1 ]
Ramirez-Pastor, AJ [1 ]
机构：
[1] Univ Nacl San Luis, CONICET, Dept Fis, Lab Ciencias Superficies & Medios Porosos, RA-5700 San Luis, Argentina
来源：
APPLIED SURFACE SCIENCE | 2005年 / 252卷 / 03期
关键词：
adsorption isotherms; multisite occupancy; quantum fractional statistics; Monte Carlo simulations; equilibrium thermodynamics and statistical mechanics;
D O I：
10.1016/j.apsusc.2005.02.067
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：
Multisite-occupancy adsorption is described as a fractional statistic problem, based on Haldane's statistics. Site exclusion is characterized by a statistical exclusion parameter, g, which relates to the molecular size and lattice geometry. A general adsorption isotherm is obtained and comparisons with experiments indicate that the spatial configuration of adsorbed molecules and lateral interactions may accurately be assessed from this theory. In addition, the theoretical framework developed in this paper allows to describe orientational transitions occurring in adlayers of polyatomics. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：505 / 511
页数：7
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