Reduction potential and oxidation catalysis of vanadium-containing H6+x P2Mo18−x V x O62 Wells-Dawson heteropolyacid (HPA) catalysts

Reduction potential and oxidation catalysis of vanadium-containing H6+x P2Mo18−x V x O62... Vanadium-containing H6+x P2Mo18−x V x O62 (x=0−3) Wells-Dawson heteropolyacid (HPA) catalysts were prepared. The successful formation of the Wells-Dawson HPAs was confirmed by FT-IR and ICP-AES analyses. The reduction potential of the H6+x P2Mo18−x V x O62 (x=0−3) catalysts was determined by temperature-programmed reduction measurements. The Wells-Dawson HPA catalysts were applied to the vapor-phase oxidation of methacrolein and benzyl alcohol. The reduction potential, conversion of methacrolein, and conversion of benzyl alcohol showed volcano-shaped curves with respect to vanadium substitution, and decreased in the order of H8P2Mo16V2O62>H7P2Mo17V1O62>H9P2Mo15V3O62>H6P2Mo18O62. A correlation between reduction potential and catalytic activity clearly showed that the conversion was monotonically increased with increasing reduction potential of the HPA catalyst in both oxidation reactions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Reduction potential and oxidation catalysis of vanadium-containing H6+x P2Mo18−x V x O62 Wells-Dawson heteropolyacid (HPA) catalysts

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Publisher
Springer Netherlands
Copyright
Copyright © 2008 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/BF03036946
Publisher site
See Article on Publisher Site

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