Influence of nature of support on the catalytic activity of supported molybdenum-oxo species in benzyl alcohol conversion

✍ Scribed by Shanty Mathew; C. Shiva Kumara; N. Nagaraju

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 199 KB
• Volume: 255
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/j.molcata.2006.04.011

✦ Synopsis

Supported catalysts containing 15 wt.% of molybdenum have been prepared by the incipient wetness impregnation method. CaO, MgO, Al 2 O 3 , Zr(OH) 4 and Al(OH) 3 have been used as supports for the preparation of supported Mo catalysts. Characterisation of all the materials prepared has been carried out through BET surface area measurement, X-ray diffractometry and FT-IR spectroscopy. Catalytic activity measurements have been carried out with reference to structure-sensitive benzyl alcohol conversion in the liquid phase. The percentage conversion of benzyl alcohol to benzaldehyde and toluene varied over a large range depending on the support used for the preparation of catalysts, indicating the importance of the support on catalytic activity of Mo catalysts. Al(OH) 3 has been found to be the best support for molybdenum among all the supports used. Support-metal interaction (SMI) has been found to play an important role in determining the catalytic activity of supported catalysts.