Oxidative dehydrogenation of propane over cobalt-containing mixed oxides obtained from LDH precursors

Mitran, Gheorghița; Cacciaguerra, Thomas; Loridant, S.; Tichit, Didier; Marcu, Ioan–Cezar

doi:10.1016/j.apcata.2011.12.038

Cited by 40 publications

(17 citation statements)

References 66 publications

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“…E a is calculated at two temperature ranges, since the bridging oxygen in M-O-V and the terminal oxygen in V=O are activated under different temperatures, as demonstrated by the changes of E a in propane oxidation and propene oxidation [23,24]. The E a falls within the normal range measured for ODH of propane over the VOx catalysts [25].…”

Section: Odh Of Propanementioning

confidence: 99%

A Comparison of the Redox Properties of Bulk Vanadium Mixed Oxide Catalysts

Wang

Qiu

et al. 2015

Catal Lett

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A series of bulk vanadium mixed oxides (Ce, Al, Fe or Cr) were successfully prepared. Methanol and propane were proposed as probe molecules to investigate the redox properties of this series of bulk vanadium mixed oxides and a qualitative picture of the redox properties was obtained. Specifically, we tested steady-state methanol oxidation at range 250-300°C and oxidative dehydrogenation (ODH) of propane to propene at range 350-550°C. We also explored the turn over frequency of redox products (TOF redox ) and found that the TOF redox values in methanol oxidation and ODH of propane changed in the order as CeVO 4 [ AlVO 4 [ V 2 O 5 [ FeVO 4 [ CrVO 4 . Graphical Abstract

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Section: Odh Of Propanementioning

confidence: 99%

A Comparison of the Redox Properties of Bulk Vanadium Mixed Oxide Catalysts

Wang

Qiu

et al. 2015

Catal Lett

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“…A wide variety of catalytic systems has been proposed for this reaction, the most studied of which are based on V5–16 or Mo 17–25. Though scarcely studied, other transition‐metal‐based catalytic materials could exhibit comparable catalytic efficiencies 26–36. Although it has been intensively studied for a long time, the conventional ODH of propane is still far from industrial application 37.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Oxidative Dehydrogenation Selectivity of Ceria‐Based Catalysts with Phosphorus as Additive

et al. 2013

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Surface‐ and bulk‐phosphated ceria catalysts were prepared and studied in propane oxidative dehydrogenation (ODH) at 823 and 873 K. The catalysts were characterized by N2 adsorption at 77 K, XRD, TEM, and diffuse reflectance IR Fourier transform (DRIFT), Raman, X‐ray photoelectron (XPS), and energy dispersive X‐ray (EDX) spectroscopies. Both series of catalysts presented an increase in the ODH selectivity with respect to pure ceria mainly at the expense of total oxidation selectivity. Thus, the selectivity to propene was approximately 74 % with surface‐phosphated catalysts and 62 % with bulk‐phosphated catalysts. For the surface‐phosphated samples, P is confined to the surface and subsurface regions of the ceria particles, whereas P is also dispersed in the bulk of the oxide in the bulk‐phosphated samples. Finally, all the characterization techniques led us to the conclusion that Ce4+ cations that interact with P are responsible for the observed increase in the ODH.

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“…LDHs are efficient catalysts for alkene oxidation carried out, which have been reported by Ray (2011) and Mitran (2012) in previous literature. However, there are still few reports about α-pinene oxidation using hydrogen peroxide as oxidant catalyzed by LDHs.…”

Section: Effect Of Catalyst Typementioning

confidence: 99%