Modification of acidity of Mo-Fe/HZSM-5 zeolite via argon plasma treatment

Abstract

The NH₃-TPD characterization was conducted to confirm that the acidity of Mo-Fe/HZSM-5 zeolite could be selectively modified via the glow discharge plasma treatment. The plasma catalyst treatment could totally change the distribution of aromatic products with higher methane conversion compared to the untreated catalyst. Some polycyclic aromatics such as anthracene, pyrene and phenanthrene were also produced over the plasma treated catalyst, in addition to benzene, toluene and naphthalene, which were normally obtained over the untreated catalyst.

Keywords

methane, aromatization, plasma, acidity, Mo-Fe/HZSM-5 zeolite