Solid-State 51V NMR and Infrared Spectroscopic Study of Vanadium Oxide Supported on ZrO2-WO3 


Vol. 19,  No. 8, pp. 856-862, Aug.  1998


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  Abstract

Vanadium oxide catalyst supported on ZrO2-WO3 was prepared by adding the Zr(OH)4 powder into a mixed aqueous solution of ammonium metavanadate and ammonium metatungstate followed by drying and calcining at high temperatures. The characterization of prepared catalysts was performed using solid-state 51V NMR and FTIR. In the case of calcination temperature at 773 K, for the samples containing low loading V2O5 below 18 wt % vanadium oxide was in a highly dispersed state, while for samples containing high loading V2O5 equal to or above 18 wt % vanadium oxide was well crystallized due to the V2O5 loading exceeding the formation of monolayer on the surface of ZrO2-WO3. The ZrV2O7 compound was formed through the reaction Of V2O5 and ZrO2 at 873 K and the compound decomposed into V2O5 and ZrO2 at 1073 K, which were confirmed by FTIR and 51V NMR.B980225

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  Cite this article

[IEEE Style]

J. R. Sohn, M. H. Lee, I. J. Doh, Y. I. Pae, "Solid-State 51V NMR and Infrared Spectroscopic Study of Vanadium Oxide Supported on ZrO2-WO3," Bulletin of the Korean Chemical Society, vol. 19, no. 8, pp. 856-862, 1998. DOI: .

[ACM Style]

Jong Rack Sohn, Man Ho Lee, Im Ja Doh, and Young Il Pae. 1998. Solid-State 51V NMR and Infrared Spectroscopic Study of Vanadium Oxide Supported on ZrO2-WO3. Bulletin of the Korean Chemical Society, 19, 8, (1998), 856-862. DOI: .

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949