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

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, w...

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Bibliographic Details
Published inCatalysis letters Vol. 145; no. 9; pp. 1792 - 1797
Main Authors Wang, Nai-liang, Qiu, Jian-e, Wu, Jian, You, Kui-yi, Luo, He-an
Format Journal Article
LanguageEnglish
Published New York Springer US 01.09.2015
Springer
Springer Nature B.V
Subjects
Alkenes
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Dehydrogenation
Industrial Chemistry/Chemical Engineering
Iron
Methanol
Microscopes
Mixed oxides
Organometallic Chemistry
Oxidation
Oxides
Physical Chemistry
Propane
Properties (attributes)
Vanadium
Oxidation
TOF
Mixed oxides
Propane
Methanol
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Summary: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
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-015-1584-6