Since V2O5/TiO2 catalysts were successful in the oxidation of oxylene, vanadium-containing catalysts were widely used in the oxidation of other aromatic and paraffinic hydrocarbons [1]. The characterization of these catalysts has been investigated by a great number of physical and chemical methods in many laboratories. But their redox property is not without controversy. TPR (Temperature-Programmed Reduction) and NH3 TPD (Temperature-Programmed Desorption) are powerful methods to characterize the redox property and the surface acidity of solid catalysts [2,3]. In this article, the influence of different supports on the redox property and the acidity of V2O5 catalysts will be clarified by TPR and NH3 TPD.
Since V2O5/TiO2 catalysts were successful in the oxidation of oxylene, vanadium-containing catalysts were widely used in the oxidation of other aromatic and paraffinic hydrocarbons [1]. The characterization of these catalysts has been investigated by a great number of physical and chemical methods in many laboratories. But their redox property is not without controversy. TPR (Temperature-Programmed Reduction) and NH3 TPD (Temperature-Programmed Desorption) are powerful methods to characterize the redox property and the surface acidity of solid catalysts [2,3]. In this article, the influence of different supports on the redox property and the acidity of V2O5 catalysts will be clarified by TPR and NH3 TPD.
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