CALORIMETRIC STUDY OF THE ACIDITY OF ALUMINA-BORIA CATALYSTS BY GASEOUS AMMONIA ADSORPTION

被引：20

作者：

COLORIO, GC

AUROUX, A

BONNETOT, B

机构：

[1] UNIV LYON 1,CATALYSIS RES INST,CNRS,2 AVE ALBERT EINSTEIN,F-69626 VILLEURBANNE,FRANCE

[2] UNIV LYON 1,INORGAN & PHYS CHEM LAB,F-69622 VILLEURBANNE,FRANCE

来源：

JOURNAL OF THERMAL ANALYSIS | 1992年 / 38卷 / 12期

关键词：

ALUMINA-BORIA CATALYSTS; CALORIMETRY;

D O I：

10.1007/BF01979732

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Alumina-boria catalysts were prepared by impregnation of porous and non porous aluminas with various amounts of boron oxide. A calorimetric investigation of their acidity was performed by gaseous ammonia adsorption. The differential heat evolved decreases when the amount of boria on alumina increases while the corresponding number of acid sites, as determined by volumetry, increases with the amount of boron oxide. The thermal behaviour and the stability of the catalysts, when dehydration occurs, were studied by differential scanning calorimetry linked to thermogravimetry.

引用

页码：2565 / 2573

页数：9

共 15 条

[1] MICROCALORIMETRIC STUDY OF THE ACIDITY AND BASICITY OF METAL-OXIDE SURFACES [J].