Влияние щелочного модификатора (Li) на кислотные свойства поверхности нанесенных MoO3/Zr-Al2O3 катализаторов

Abstract

Li-promoted MoO3/Zr-Al2O3 catalysts were prepared by the wet impregnation method. Zr modification of alumina-based support was carried out byimpregnation and wet mixing methods. These catalysts were characterized by various techniques, such as low-temperature nitrogen physisorption, X-ray diffraction (XRD), X-ray fluorescence (XRF), temperature-programmed reduction (TPR), NH3 pulse adsorption. It was found that the introduction of a lithium additive promotes an increase in the amount of absorbed H2 and a decrease in the acidity of the catalysts.