Fourier transform infrared spectroscopic study of surface acidity by pyridine adsorption on Mo/ZrO2-SiO2(Al2O3) catalysts
(2001) Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy — Vol. 57, n° 12, p. 2495-2501 (2001)
Files
pdfdocument.pdf
Restricted Access - Adobe PDF
- 258.63 KB
Details
- Authors
- Abstract
- Acidity of the oxidic molybdenum catalysts supported on mixed ZrO2-SiO2 and ZrO2-Al2O3 carriers was investigated by Fourier transform infrared spectroscopy of pyridine adsorption. Deposition of molybdenum on ZrO2-SiO2 and ZrO2-Al2O3 supports leads to formation of surface Bronsted acid sites. The number of the Bronsted and Lewis acid sites in supported-molybdenum catalysts depends on both the ZrO2 content and the type of the support. With increasing ZrO2 content, the Lewis acid sites increase for both series of catalysts. The Bronsted acid sites are higher for Mo/ZrO2-SiO2, samples compared to those for Mo/ZrO2-Al2O3 and also increase with zirconia. (C) 2001 Elsevier Science B.V. All rights reserved.
- Affiliations
Citations
Damyanova, S., Centeno, M., Petrov, L., & Grange, P. (2001). Fourier transform infrared spectroscopic study of surface acidity by pyridine adsorption on Mo/ZrO2-SiO2(Al2O3) catalysts. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 57(12), 2495-2501. https://doi.org/10.1016/S1386-1425(01)00456-5 (Original work published 2001)