Abstract
The synthesis in the presence of alkali ions of two novel vanadium containing zeolites V-Al-EU-1 and V-Al-ZSM-22 is reported. Both V4+- and V5+-ions are present in as-synthesized samples. Cyclic voltammograms of the samples reveal the presence of two types of V5+ in the calcined samples. A weak shoulder at ∼980 cm−1 is observed in the IR spectra of the calcined samples. On extraction with acid a sharp band appears at ∼960 cm−1. The acid washed samples are more active in the hydroxylation of phenol and the oxidation of toluene (with H2O2) than the calcined samples.
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Chatterjee, M., Bhattacharya, D., Venkatathri, N. et al. Synthesis, characterization and catalytic properties of two novel vanado-aluminosilicates with EU-1 and ZSM-22 structures. Catal Lett 35, 313–326 (1995). https://doi.org/10.1007/BF00807188
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DOI: https://doi.org/10.1007/BF00807188