Calorimetric study of the acidity and interface effects of tin dioxide layers deposited on another metal oxide

Authors
Sprinceana, D Caldararu, M Ionescu, NI Auroux, A
Citation
D. Sprinceana et al., Calorimetric study of the acidity and interface effects of tin dioxide layers deposited on another metal oxide, J THERM ANA, 56(1), 1999, pp. 109-115
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
56
Issue
1
Year of publication
1999
Pages
109 - 115
Database
ISI
SICI code
1388-6150(1999)56:1<109:CSOTAA>2.0.ZU;2-F
Abstract
Samples with various amounts of tin oxide were prepared by impregnating gam ma-Al2O3, TiO2(anatase), SiO2, ZrO2 and MgO with tin tetrachloride or tribu tyltin acetate solutions. After drying and calcination, the samples were ch aracterized by chemical analysis, XRD and BET measurements. Ammonia adsorpt ion microcalorimetry was used in order to determine the number, strength an d strength distribution of surface acid sites. The influence of the adsorpt ion temperature, evacuation temperature, amount of SnO2 deposited and of th e nature of the support on the adsorption properties were studied.