SANS investigations of benzene adsorption on porous silica gel

被引:18
|
作者
Ramsay, JDF
Hoinkis, E
机构
[1] Univ Montpellier 2, Lab Mat & Procedes Membranaires, UMR CNRS 5635, F-34095 Montpellier, France
[2] Hahn Meitner Inst Kernforsch Berlin GmbH, D-14109 Berlin, Germany
来源
PHYSICA B | 1998年 / 248卷
关键词
porosity; SANS; gels; adsorption;
D O I
10.1016/S0921-4526(98)00257-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The mechanisms of the adsorption and condensation of benzene in a mesoporous silica gel at 310K have been investigated by SANS. Measurements have been made in situ during an adsorption/desorption isotherm cycle with a specially constructed cell using contrast matching conditions for the condensed fluid. The results are in accordance with a process of multilayer formation and subsequent capillary condensation, which develops around the zones of particle contact in the gel structure. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:322 / 326
页数:5
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