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

Jason D. Pless; Billy B. Bardin; Peter C. Stair; Kenneth R. Poeppelmeier

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

Jason D. Pless, Billy B. Bardin, Peter C. Stair, Kenneth R. Poeppelmeier

Northwestern University

Research output: Contribution to journal › Conference article

Abstract

A series of single-phase compositions found in the MgO - V ₂O ₅ - MoO ₃ ternary phase diagram, e.g., Mg ₃(VO ₄) ₂, Mg ₂V ₂O ₇, MgMoO ₄, etc., were studied for their activity and selectivity for the oxidative dehydrogenation (ODH) of propane. Molybdenum substitution on vanadium sites increased both the selectivity and activity of propane ODH. The increase in selectivity and activity seen with molybdenum substitution was associated with Mg cation vacancies formed from the substitution of Mo ⁶⁺ for V ⁵⁺. The cation vacancies allowed for a more facile diffusion of the bulk oxide anions to the catalyst surface. The relationship between structure and the catalytic activity and selectivity of Mg ₃(VO ₄) ₂ and Mg _0.992MoO _3.992 was studied by in situ visible and UV Raman spectroscopy. The present work was directed toward understanding the reaction mechanism of propane ODH on the catalyst surface. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

Original language	English
Pages (from-to)	INOR-366
Journal	ACS National Meeting Book of Abstracts
Volume	228
Issue number	1
Publication status	Published - Oct 20 2004
Event	Abstracts of Papers - 228th ACS National Meeting - Philadelphia, PA, United States Duration: Aug 22 2004 → Aug 26 2004

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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Pless, J. D., Bardin, B. B., Stair, P. C., & Poeppelmeier, K. R. (2004). Catalytic oxidative dehydrogenation of propane over Mg-V-Mo oxides. ACS National Meeting Book of Abstracts, 228(1), INOR-366.

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

abstract = "A series of single-phase compositions found in the MgO - V 2O 5 - MoO 3 ternary phase diagram, e.g., Mg 3(VO 4) 2, Mg 2V 2O 7, MgMoO 4, etc., were studied for their activity and selectivity for the oxidative dehydrogenation (ODH) of propane. Molybdenum substitution on vanadium sites increased both the selectivity and activity of propane ODH. The increase in selectivity and activity seen with molybdenum substitution was associated with Mg cation vacancies formed from the substitution of Mo 6+ for V 5+. The cation vacancies allowed for a more facile diffusion of the bulk oxide anions to the catalyst surface. The relationship between structure and the catalytic activity and selectivity of Mg 3(VO 4) 2 and Mg 0.992MoO 3.992 was studied by in situ visible and UV Raman spectroscopy. The present work was directed toward understanding the reaction mechanism of propane ODH on the catalyst surface. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).",

author = "Pless, {Jason D.} and Bardin, {Billy B.} and Stair, {Peter C.} and Poeppelmeier, {Kenneth R.}",

year = "2004",

month = oct,

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language = "English",

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

AU - Pless, Jason D.

AU - Bardin, Billy B.

AU - Stair, Peter C.

AU - Poeppelmeier, Kenneth R.

PY - 2004/10/20

Y1 - 2004/10/20

N2 - A series of single-phase compositions found in the MgO - V 2O 5 - MoO 3 ternary phase diagram, e.g., Mg 3(VO 4) 2, Mg 2V 2O 7, MgMoO 4, etc., were studied for their activity and selectivity for the oxidative dehydrogenation (ODH) of propane. Molybdenum substitution on vanadium sites increased both the selectivity and activity of propane ODH. The increase in selectivity and activity seen with molybdenum substitution was associated with Mg cation vacancies formed from the substitution of Mo 6+ for V 5+. The cation vacancies allowed for a more facile diffusion of the bulk oxide anions to the catalyst surface. The relationship between structure and the catalytic activity and selectivity of Mg 3(VO 4) 2 and Mg 0.992MoO 3.992 was studied by in situ visible and UV Raman spectroscopy. The present work was directed toward understanding the reaction mechanism of propane ODH on the catalyst surface. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

AB - A series of single-phase compositions found in the MgO - V 2O 5 - MoO 3 ternary phase diagram, e.g., Mg 3(VO 4) 2, Mg 2V 2O 7, MgMoO 4, etc., were studied for their activity and selectivity for the oxidative dehydrogenation (ODH) of propane. Molybdenum substitution on vanadium sites increased both the selectivity and activity of propane ODH. The increase in selectivity and activity seen with molybdenum substitution was associated with Mg cation vacancies formed from the substitution of Mo 6+ for V 5+. The cation vacancies allowed for a more facile diffusion of the bulk oxide anions to the catalyst surface. The relationship between structure and the catalytic activity and selectivity of Mg 3(VO 4) 2 and Mg 0.992MoO 3.992 was studied by in situ visible and UV Raman spectroscopy. The present work was directed toward understanding the reaction mechanism of propane ODH on the catalyst surface. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

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AN - SCOPUS:5044250053

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JF - ACS National Meeting Book of Abstracts

SN - 0065-7727

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T2 - Abstracts of Papers - 228th ACS National Meeting

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