Abstract
The surface intermediates in acrolein oxidation into acrylic acid on a V-Mo oxide catalyst, formaldehyde oxidation into formic acid on a V-Ti catalyst, and 3-pyridinecarboxaldehyde and β-picoline oxidation into nicotinic acid on a V-Ti catalyst are identified by in situ IR spectroscopy. The acids are found to form by similar mechanisms. The intermediates in acid formation are saltlike surface compounds (formates, acrylates, and nicotinates) stabilized on vanadium ions. The role of vanadium in acid formation is discussed in terms of the mechanisms suggested.
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Translated from Kinetika i Kataliz, Vol. 46, No. 2, 2005, pp. 233–242.
Original Russian Text Copyright © 2005 by Popova, Andrushkevich, Zakharov, Chesalov.
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Popova, G.Y., Andrushkevich, T.V., Zakharov, I.I. et al. Mechanism of carboxylic acid formation on vanadium-containing oxide catalysts. Kinet Catal 46, 217–226 (2005). https://doi.org/10.1007/s10975-005-0069-9
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DOI: https://doi.org/10.1007/s10975-005-0069-9