[EN] The nature of organic structure directing agents (OSDAs) is of paramount importance in the final properties of zeolites, particularly the framework and porosity. Recently, the use of P-containing OSDAs has been employed ...

[EN] Fe (2 wt%)-Cu (1.5 wt%)-ZSM-5 SCR catalyst contacted 1.5 wt% of Na and 1.8 wt% of K in order to simulate poisoning by species more specifically contained in exhaust gases from exhaust gases of diesel engines and power ...

[EN] The selective catalytic reduction (SCR) of NO with NH3 in the presence of O-2 and H2O over a series of Fe and/or Cu-containing ZSM-5 catalysts prepared by solid state ion exchange (SSIE) was investigated. A wide number ...

[EN] The choice of structure directing agents (SDAs) in zeolite synthesis significantly impacts the arrangement of active sites, thereby influencing the stabilization of reaction intermediates with profound implications ...

[EN] A series of catalysts based on Mn-Fe loaded zeolites was prepared by impregnation and their activity in the selective catalytic reduction of NO with ammonia (NH3-SCR) was investigated. The highest catalytic conversion ...

[EN] Highly crystalline pure silica MFI zeolites have been synthesized using tetraethylammonium (TEA), tetraethylphosphonium (TEP), or a mixture of both cations in different proportions as organic structure directing agents ...

Las emisiones de amoniaco constituyen un grave problema de contaminación atmosférica relacionado con ciertos procesos como la producción de amoniaco, las plantas de gasificación de biomasa y las emisiones residuales de los ...

Este proyecto tiene por objeto la preparación de zeolita ZSM-5 en composición puramente silícea y con distintos contenidos en Al empleando aniones fluoruro como agente movilizante y diferentes cationes orgánicos como agentes ...