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- W2022358635 abstract "Propane oxidative dehydrogenation has been studied on several supported vanadyl orthophosphate catalysts. TiO 2 -supported sample showed the best performance related to high active phase dispersion. Propane oxidative dehydrogenation has been investigated on vanadyl orthophosphate dispersed on different supports (Al 2 O 3 , TiO 2 , SiO 2 , ZrO 2 , MgO and SnO) in a fixed bed reactor in the temperature range 300–550 °C. Catalysts have been characterized by bulk and surface sensitive techniques, such as X-ray diffraction (XRD), BET analysis, temperature programmed reduction with H 2 (H 2 -TPR) and X-ray photoelectron spectroscopy (XPS). A different dispersion of vanadium species has been found depending on the different nature of the supports. Al 2 O 3 , ZrO 2 and TiO 2 promote the best dispersion of vanadium and provide the highest catalytic performances, due to the strong interaction of the support with the phosphate phase and the enhanced vanadium reducibility. A different reaction path is activated by catalysts supported on SiO 2 , MgO and SnO due to the formation of vanadyl phosphate aggregates and in some cases also to the reducibility of the support which favour propane overoxidation leading to a larger CO 2 production." @default.
- W2022358635 created "2016-06-24" @default.
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- W2022358635 date "2010-08-17" @default.
- W2022358635 modified "2023-09-27" @default.
- W2022358635 title "Effect of the support on the catalytic properties of vanadyl phosphate in the oxidative dehydrogenation of propane" @default.
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- W2022358635 doi "https://doi.org/10.1016/j.molcata.2010.06.017" @default.
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