INVERSE GAS-CHROMATOGRAPHIC STUDIES ON SILICA - INFINITE DILUTION AND FINITE CONCENTRATION MEASUREMENTS

被引：26

作者：

TIJBURG, I

JAGIELLO, J

VIDAL, A

PAPIRER, E

机构：

[1] AKZO PQ SILICA,AMSTERDAM,NETHERLANDS

[2] UNIV MIN & MET KRAKOW,INST ENERGOCHEM COAL & PHYS CHEM SORBENTS,KRAKOW,POLAND

来源：

LANGMUIR | 1991年 / 7卷 / 10期

关键词：

D O I：

10.1021/la00058a044

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The surface properties of a precipitated silica have been determined by inverse gas chromatography, either at infinite dilution or at finite concentration conditions. The dispersive component of the surface energy is readily assessed, whereas a new approach is proposed for the appraisal of the specific interaction capacity of the silica, starting from alkene adsorption thermodynamic data. Further, the adsorption energy distributions of alkanes and alkenes are calculated, showing the very heterogeneous energetic nature of the silica surface, which interacts strongly with the alkene probes.

引用

页码：2243 / 2247

页数：5

共 23 条

[1] PHYSICAL ADSORPTION ON HETEROGENEOUS SURFACES [J].