CHARACTERIZATION OF SILICAS BY INVERSE GAS-CHROMATOGRAPHY AT FINITE CONCENTRATION - DETERMINATION OF THE ADSORPTION ENERGY-DISTRIBUTION FUNCTION

被引：85

作者：

JAGIELLO, J ^{[1
]}

LIGNER, G ^{[1
]}

PAPIRER, E ^{[1
]}

机构：

[1] CNRS,CTR RECH PHYSICOCHIM SURFACES SOLIDES,24 AVE PDT KENNEDY,F-68200 MULHOUSE,FRANCE

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1990年 / 137卷 / 01期

关键词：

D O I：

10.1016/0021-9797(90)90049-T

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：

Amorphous and crystalline silicas, eventually modified by heat treatment or by surface grafting of alkyl chains, were investigated by inverse gas chromatography, a method which easily provides adsorption isotherms of various linear alkanes. The isotherms were analyzed in order to obtain the adsorption energy distribution of alkane probes. The distributions were calculated using a local solution of the adsorption integral equation which is evaluated and discussed. Silicas show typical energy distribution patterns. Furthermore, the grafting of hexadecanol chains on the silica surface brings the greatest changes in the energy distributions. © 1990.

引用

页码：128 / 136

页数：9

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