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Fourier-transform Infrared Investigation of Intermediates in the Oxidation of Toluene on V2O5/TiO2

DOI: 10.1039/f19888402465

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Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 2465 - 2476 (1988)

Update date:2022-08-30

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Authors:

Miyata, HisashiMiyata, Hisashi

Mukai, TadashiMukai, Tadashi

Ono, TakenhikoOno, Takenhiko

Ohno, TakashiOhno, Takashi

Hatayama, FumikazuHatayama, Fumikazu

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Article abstract of DOI:10.1039/f19888402465

The adsorption and oxidation of toluene on V-Ti oxide prepared by the gas-phase method (2.1 to 5.6 wt percent) has been studied by F.t.i.r. spectroscopy as well as the microcatalytic method.It is found that toluene is bonded as a ?-complex to the vanadium ion.The CH3 groups of the ?-complex are dehydrogenated by the V=O species to form benzyl species at room temperature.The formation of aldehyde-like intermediate before the oxidation of benzyl species to benzoate has been confirmed.The reactivity of surface V=O species of V-Ti oxide prepared by a gas-phase method is greater than that of the impregnation catalyst.

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