Catalytic oxidative dehydrogenation of propane over Mg-V/Mo oxides

Jason D. Pless; Billy B. Bardin; Hack Sung Kim; Donggeun Ko; Matthew T. Smith; Robin R. Hammond; Peter C. Stair; Kenneth R. Poeppelmeier

doi:10.1016/j.jcat.2004.01.023

Catalytic oxidative dehydrogenation of propane over Mg-V/Mo oxides

Jason D. Pless, Billy B. Bardin, Hack Sung Kim, Donggeun Ko, Matthew T. Smith, Robin R. Hammond, Peter C. Stair, Kenneth R. Poeppelmeier^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

Fifteen distinct MgO-V₂O₅, MgO-MoO₃, MgO-V₂O₅-MoO₃, and V₂O ₅-MoO₃ compositions were prepared using sol-gel chemistry and their selectivities and conversions for propane oxidative dehydrogenation (ODH) to propylene were measured. The vanadates were more active than the molybdates at lower temperatures; however, the molybdates exhibited higher selectivities at similar conversions. An increase in both ODH conversion and selectivity with molybdenum substitution on vanadium sites was also observed. These results demonstrate the importance of the bulk structure on the ODH reaction. In general, propylene selectivities increased with increasing conversions at temperatures above 673 K when oxygen depletion in the reactant stream occurred. Visible and UV Raman spectroscopy corroborates this result and helps focus attention on critical surface-specific information. A new Raman peak was observed for the partially reduced MgMoO₄ and is associated with a three-coordinate surface oxygen.

Original language	English (US)
Pages (from-to)	419-431
Number of pages	13
Journal	Journal of Catalysis
Volume	223
Issue number	2
DOIs	https://doi.org/10.1016/j.jcat.2004.01.023
State	Published - Apr 25 2004

Funding

The authors thank Erl Thorsteinson for setting up this collaboration and his helpful discussions and Richard Chaffin for the Krypton BET surface area measurements. The authors gratefully acknowledge support by the National Science Foundation and the Department of Energy under the Environmental Molecular Science Institutes program (Grant 9810378) at the Northwestern University Institute for Environmental Catalysis and made use of the Central Facilities supported by the MRSEC program of the National Science Foundation (Grant DMR-0076097) at the Materials Research Center of Northwestern University. B. Bardin acknowledges The Dow Chemical Company for support of this work.

Keywords

Magnesium, vanadium, and molybdenum oxides
ODH
Oxidative dehydrogenation
Propane
Raman spectroscopy

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

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10.1016/j.jcat.2004.01.023

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@article{11927744955f407881033ffb261ac415,

title = "Catalytic oxidative dehydrogenation of propane over Mg-V/Mo oxides",

abstract = "Fifteen distinct MgO-V2O5, MgO-MoO3, MgO-V2O5-MoO3, and V2O 5-MoO3 compositions were prepared using sol-gel chemistry and their selectivities and conversions for propane oxidative dehydrogenation (ODH) to propylene were measured. The vanadates were more active than the molybdates at lower temperatures; however, the molybdates exhibited higher selectivities at similar conversions. An increase in both ODH conversion and selectivity with molybdenum substitution on vanadium sites was also observed. These results demonstrate the importance of the bulk structure on the ODH reaction. In general, propylene selectivities increased with increasing conversions at temperatures above 673 K when oxygen depletion in the reactant stream occurred. Visible and UV Raman spectroscopy corroborates this result and helps focus attention on critical surface-specific information. A new Raman peak was observed for the partially reduced MgMoO4 and is associated with a three-coordinate surface oxygen.",

keywords = "Magnesium, vanadium, and molybdenum oxides, ODH, Oxidative dehydrogenation, Propane, Raman spectroscopy",

author = "Pless, {Jason D.} and Bardin, {Billy B.} and Kim, {Hack Sung} and Donggeun Ko and Smith, {Matthew T.} and Hammond, {Robin R.} and Stair, {Peter C.} and Poeppelmeier, {Kenneth R.}",

note = "Funding Information: The authors thank Erl Thorsteinson for setting up this collaboration and his helpful discussions and Richard Chaffin for the Krypton BET surface area measurements. The authors gratefully acknowledge support by the National Science Foundation and the Department of Energy under the Environmental Molecular Science Institutes program (Grant 9810378) at the Northwestern University Institute for Environmental Catalysis and made use of the Central Facilities supported by the MRSEC program of the National Science Foundation (Grant DMR-0076097) at the Materials Research Center of Northwestern University. B. Bardin acknowledges The Dow Chemical Company for support of this work. ",

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doi = "10.1016/j.jcat.2004.01.023",

language = "English (US)",

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pages = "419--431",

journal = "Journal of Catalysis",

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T1 - Catalytic oxidative dehydrogenation of propane over Mg-V/Mo oxides

AU - Pless, Jason D.

AU - Bardin, Billy B.

AU - Kim, Hack Sung

AU - Ko, Donggeun

AU - Smith, Matthew T.

AU - Hammond, Robin R.

AU - Stair, Peter C.

AU - Poeppelmeier, Kenneth R.

N1 - Funding Information: The authors thank Erl Thorsteinson for setting up this collaboration and his helpful discussions and Richard Chaffin for the Krypton BET surface area measurements. The authors gratefully acknowledge support by the National Science Foundation and the Department of Energy under the Environmental Molecular Science Institutes program (Grant 9810378) at the Northwestern University Institute for Environmental Catalysis and made use of the Central Facilities supported by the MRSEC program of the National Science Foundation (Grant DMR-0076097) at the Materials Research Center of Northwestern University. B. Bardin acknowledges The Dow Chemical Company for support of this work.

PY - 2004/4/25

Y1 - 2004/4/25

N2 - Fifteen distinct MgO-V2O5, MgO-MoO3, MgO-V2O5-MoO3, and V2O 5-MoO3 compositions were prepared using sol-gel chemistry and their selectivities and conversions for propane oxidative dehydrogenation (ODH) to propylene were measured. The vanadates were more active than the molybdates at lower temperatures; however, the molybdates exhibited higher selectivities at similar conversions. An increase in both ODH conversion and selectivity with molybdenum substitution on vanadium sites was also observed. These results demonstrate the importance of the bulk structure on the ODH reaction. In general, propylene selectivities increased with increasing conversions at temperatures above 673 K when oxygen depletion in the reactant stream occurred. Visible and UV Raman spectroscopy corroborates this result and helps focus attention on critical surface-specific information. A new Raman peak was observed for the partially reduced MgMoO4 and is associated with a three-coordinate surface oxygen.

AB - Fifteen distinct MgO-V2O5, MgO-MoO3, MgO-V2O5-MoO3, and V2O 5-MoO3 compositions were prepared using sol-gel chemistry and their selectivities and conversions for propane oxidative dehydrogenation (ODH) to propylene were measured. The vanadates were more active than the molybdates at lower temperatures; however, the molybdates exhibited higher selectivities at similar conversions. An increase in both ODH conversion and selectivity with molybdenum substitution on vanadium sites was also observed. These results demonstrate the importance of the bulk structure on the ODH reaction. In general, propylene selectivities increased with increasing conversions at temperatures above 673 K when oxygen depletion in the reactant stream occurred. Visible and UV Raman spectroscopy corroborates this result and helps focus attention on critical surface-specific information. A new Raman peak was observed for the partially reduced MgMoO4 and is associated with a three-coordinate surface oxygen.

KW - Magnesium, vanadium, and molybdenum oxides

KW - ODH

KW - Oxidative dehydrogenation

KW - Propane

KW - Raman spectroscopy

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ER -

Catalytic oxidative dehydrogenation of propane over Mg-V/Mo oxides

Abstract

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Keywords

ASJC Scopus subject areas

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