FTIR study of CO adsorption on molybdena-alumina catalysts for surface characterization |
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| Authors: | Heider Nasser ákos Rédey Tatiana Yuzhakova Zsolt Németh Tóth and Tamás Ollár |
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| Institution: | (1) Department of Environmental Engineering and Chemical Technology, University of Pannonia, Veszprém, P.O. Box 158, H-8201, Hungary |
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| Abstract: | CO adsorption at low temperature has been used to probe Lewis acid sites created upon dehydroxylation of γ-Al2O3 and reduction of Mo/Al2O3 catalysts, using Fourier Transform Infrared spectroscopy (FTIR).
Carbon-monoxide adsorption on γ-Al2O3 and Mo/Al2O3 catalysts dehydroxylated and reduced at different temperatures was studied at 78 K by IR spectroscopy. However, our results
indicate that there is an approximately linear correlation between the increase either of dehydroxylation or the extent of
reduction of the catalysts and the increasing absorbance of CO due to CO adsorption on Lewis acid sites created upon dehydroxylation
of γ-Al2O3 and reduction of Mo/Al2O3. |
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| Keywords: | FTIR molybdena-alumina CO adsorption |
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