Vanadium-modified molecular sieves: preparation, characterization and catalysis

AUTOR(ES)

Teixeira-Neto, Ângela A., Marchese, Leonardo, Pastore, Heloise O.

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2009

RESUMO

Vanadium-containing molecular sieves are redox catalysts and are good candidates as substitutes for oxide-supported V2O5 in a number of reactions. These materials have the advantage of presenting better dispersion of vanadium species, as well as shape-selective properties and controllable acidities. They may be prepared by one-pot synthesis or by post-synthesis methods and a number of techniques such as diffuse reflectance UV-visible spectroscopy, 51V nuclear magnetic resonance and electron paramagnetic resonance, to name but a few, have been used to characterize these materials. In this review, methods of preparation of vanadium-modified molecular sieves, their characterization and applications in catalysis are discussed.

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