Title of article
Acid–base properties of supported gallium oxide catalysts
Author/Authors
A.L Petre، نويسنده , , A Auroux، نويسنده , , P Gélin، نويسنده , , M Caldararu، نويسنده , , N.I. Ionescu، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2001
Pages
9
From page
177
To page
185
Abstract
The acid–base properties of supported gallium oxide catalysts have been investigated by microcalorimetry and FTIR spectroscopy of pyridine (acidity) and CO2 (basicity) adsorption. Pyridine adsorption microcalorimetry has shown that loading supports such as γ-Al2O3, TiO2, and ZrO2 with gallium oxide in a surface concentration close to the theoretical monolayer, resulted in a decrease of the surface acidity of the catalysts compared to that of the supports, while, in the case of SiO2, new Lewis acid sites were created. The number of acid sites for the supported and bulk gallium oxide catalysts was in the following order: Ga2O3/SiO2
Keywords
Acid–base properties , Adsorption microcalorimetry , Supported gallium oxide catalysts , FTIR spectroscopy
Journal title
Thermochimica Acta
Serial Year
2001
Journal title
Thermochimica Acta
Record number
1195243
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