POROSITY OF SILICA-GELS BY THERMAL-DESORPTION OF LIQUIDS

被引：21

作者：

GOWOREK, J

STEFANIAK, W

机构：

[1] Faculty of Chemistry, Maria Curie-Sklodowska University

来源：

COLLOIDS AND SURFACES | 1992年 / 69卷 / 01期

关键词：

PORE STRUCTURE; SILICA GELS; THERMAL DESORPTION;

D O I：

10.1016/0166-6622(92)80234-S

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：

Thermal desorption of liquids was measured using a derivatograph. Alcohols and aliphatic hydrocarbons were used as liquid adsorbates. Pore size distribution curves of silica gels were determined on the basis of thermogravimetric curves using the Kelvin equation. Calculated distributions and total pore volumes were compared with those obtained from the nitrogen method and mercury porosimetry. The influence of heating programs on the shape of the distribution curves is discussed.

引用

页码：23 / 29

页数：7

共 5 条

[1] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].