ISSN:
1572-9028
Keywords:
vanadyl pyrophosphate
;
toluene
;
partial oxidation
;
benzaldehyde
;
acidity
;
pyridine
;
acetonitrile
;
in situ FTIR spectroscopy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The adsorption and reaction of toluene on vanadyl pyrophosphate catalysts was studied by in situ infrared spectroscopy. Strongly adsorbed benzaldehyde and physically adsorbed cyclic anhydride species were observed at temperatures above 523 K. Water formed during reaction generates acid hydroxyl groups which cause a stronger adsorption of benzaldehyde and consecutive oxidation reactions. By co-adsorption of pyridine the acid sites are blocked and the deeper oxidation is suppressed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1027234116582
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