Surface characterization of a grafted vanadium–titanium dioxide catalyst
- 1 January 1985
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 81 (4) , 1003-1014
- https://doi.org/10.1039/f19858101003
Abstract
Surface properties of a low-content vanadium catalyst, prepared by grafting a high-surface-area TiO2(anatase) support, have been studied by means of diffuse reflectance, e.s.r. and F.t.i.r. spectroscopy, t.p.d. and its catalytic activity by butadiene oxidation. It has been found that the grafting reaction of vanadium occurs on all surface OH groups of TiO2, leaving exposed Ti4+ cations. Vanadium sites are isolated on the surface and have labile oxidative and coordinative states. Moreover, they interact cooperatively with titanium sites. Evidence for other vanadium species (surface, interstitial or reticular) has not been found.Keywords
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