DIFFUSION AND PREFERENTIAL ADSORPTION OF SOL-GEL GLASS

被引：22

作者：

WATSON, J ^{[1
]}

ZERDA, TW ^{[1
]}

机构：

[1] TEXAS CHRISTIAN UNIV,DEPT PHYS,POB 32915,FT WORTH,TX 76129

来源：

APPLIED SPECTROSCOPY | 1991年 / 45卷 / 08期

关键词：

RAMAN SPECTROSCOPY; SURFACE ANALYSIS;

D O I：

10.1366/0003702914335689

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Samples of porous glass of 38 angstrom average pore size are prepared with the use of the sol-gel technique. After stabilizing at 800-degrees-C, samples are impregnated with various binary mixtures and Raman spectroscopy is used to analyze the composition of the mixtures inside the pores. In order to study the effect of surface interaction on preferential adsorption, the experiments are repeated for samples of modified surfaces. It is shown that surface interactions are important and they determine the excess adsorption. The diffusion rate inside porous glass is also measured and it is shown to depend on surface interactions.

引用

页码：1360 / 1365

页数：6

共 22 条

[1]

[Anonymous], 1990, DRYING SOL GEL SCI, DOI [10.1016/B978-0-08-057103-4.50013-1, DOI 10.1016/B978-0-08-057103-4.50013-1]

[2]

AWSCHALOM DD, 1989, MOL DYNAMICS RESTRIC, P351

[3]

DAVYDOV VY, 1973, ZH FIZ KHIM+, V47, P2091

[4] ADSORPTION FROM BINARY-SOLUTIONS ON SILANIZED SILICA-GEL [J].