Thermogravimetric analysis for acidity determination in pillared clays

Authors
Benito, I Blanco, C Martinez, M del Riego, A Gonzalez, F Pesquera, C
Citation
I. Benito et al., Thermogravimetric analysis for acidity determination in pillared clays, J THERM ANA, 55(2), 1999, pp. 461-466
Citations number
11
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
55
Issue
2
Year of publication
1999
Pages
461 - 466
Database
ISI
SICI code
1388-6150(1999)55:2<461:TAFADI>2.0.ZU;2-2
Abstract
Thermogravimetric analysis of pyridine adsorption was applied to study the acidity at different temperatures of clays pillared with Al pillars and mix ed AI-Ga pillars, in relation to the starting montmorillonite. These result s were compared with those obtained by means of a pulse-chromatographic tec hnique. The pillaring process produces a large number of acid centers in th e samples. Al-Ga-PILC has a higher acidity than Al-PILC.