Periodic Trends in the Character of First-Row Transition Metals-Based Catalysts Embedded on Mordenite

Abstract

This research studied the effect of transition metals (TMs) in one period (TMs = Fe, Co, Ni, Cu, and Ag) on the characteristics of mordenite zeolite. The loading method used was wet impregnation with 0.025 M metal salt concentrate. The results showed that TMs could be impregnated on mordenite, which was indicated by a shift in the wavelength of certain functional groups. However, the metal loading did not cause a change in the diffraction pattern of mordenite. The periodicity of transition metals impacts the strength of acidity and texture of the catalyst, where the optimum strength of acidity, surface area, pore-volume, and average pore radius is Co/Mor. Morphological analysis showed that TMs/mordenite catalyst was more heterogeneous than mordenite.