Chemically Induced Fast Solid-State Transitions of ω-VOPO 4 in Vanadium Phosphate Catalysts-Reference-Cited by-同舟云学术

Chemically Induced Fast Solid-State Transitions of ω-VOPO 4 in Vanadium Phosphate Catalysts

Published:2006-09 Issue:5791 Volume:313 Page:1270-1273
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Conte Marco¹²,Budroni Gerolamo¹²,Bartley Jonathan K.¹²,Taylor Stuart H.¹²,Carley Albert F.¹²,Schmidt Andi¹²,Murphy Damien M.¹²,Girgsdies Frank¹²,Ressler Thorsten¹²,Schlögl Robert¹²,Hutchings Graham J.¹²

Affiliation:

1. School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK.

2. Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, D-14195, Berlin, Germany.

Abstract

Vanadium phosphates are important catalysts for the oxidation of alkanes, and commercial catalysts comprise a complex range of V 4+ and V 5+ phosphates. We used three complementary in situ characterization methodologies—powder x-ray diffraction and laser Raman and electron paramagnetic resonance spectroscopies—to show that the metastable phase ω-VOPO 4 is very sensitive to many of the reactants and products of butane oxidation. A rapid transformation from ω-VOPO 4 to δ-VOPO 4 occurs on exposure to butane at the reaction temperature, and hence the metastable ω-VOPO 4 may play a role in the formation of commercial catalysts.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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