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Mechanism ofb-picoline oxidation to nicotinic acid on V-Ti-O catalyst as studied by in situFTIR |
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| Authors: | Galina Ya Popova Galina Ya Popova Tamara V Andrushkevich Tamara V Andrushkevich Yuriy A Chesalov Yuriy A Chesalov Elena V Ovchinnikova and Elena V Ovchinnikova |
| Institution: | (1) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(2) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(3) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(4) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(5) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(6) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(7) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;(8) Boreskov Institute of Catalysis, Novosibirsk 630090, Russia |
| Abstract: | Summary In situFTIR spectroscopy was used to study the interaction of<span style='font-family:Symbol;mso-bidi-font-family:Symbol'>b-picoline with the surface of a V-Ti-O catalyst in the temperature range of 120-300°C.b-picoline was found to react with the Lewis acid sites of the catalyst to form a nitrogen-coordinated complex. This complex turns into an aldehyde-like complex at</o:p>150-250°C and then into a nicotinate, which is a direct precursor of nicotinic acid.</o:p> |
| Keywords: | nicotinic acid b-picoline intermediate In situ FTIR spectroscopy V-Ti-O catalyst |
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