Investigation of 12-Tungstophosphoric Acid Supported on Ce0.5Zr0.5O2 Solid Solution View Full Text


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Article Info

DATE

2007-10-02

AUTHORS

G. Ranga Rao, T. Rajkumar

ABSTRACT

The nature of the Keggin ions of tungstophosphoric acid interacting with Ce0.5Zr0.5O2 solid solution has been investigated. The vibrational study shows additional IR features at 1051 and 957 cm−1 which are correlated to the primary Keggin anions interacting with Lewis sites involving Ce4+ and Zr4+ ions, and thus affecting the P–O and W=Oterminal bonds. The IR study indicates the formation of interfacial Ce4+–O–W and Zr4+–O–W bonds. The chemisorbed Keggin molecular layers on Ce0.5Zr0.5O2 show activity towards conversion of acetophenone to styrene by Meerwein–Ponndorf–Verley reduction followed by dehydration. The activity is correlated with the relative intensities of IR peaks at 1051 and 957 cm−1 of the perturbed Keggin molecular layers. More... »

PAGES

261-273

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10562-007-9279-2

DOI

http://dx.doi.org/10.1007/s10562-007-9279-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1009154118


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