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A number of techniques (ICP-OES, XRD, SEM, 27 Al MAS-NMR, N 2 adsorption, NH 3 -TPD, FTIR of pyridine adsorbed, HRTEM, UV/vis, and EPR) have been applied to characterize the morphology, structure, porosity, acidity, and forms of iron and aluminum in Fe-beta and Fe-ZSM-5 prepared by hydrothermal synthesis and in their products of activation by calcination and steam treatment...
Physicochemical characteristics of isomorphously substituted FeZSM-5 both after preparation and after activation have been determined by gas (Ar and N 2 ) physisorption, 27 Al and 29 Si magic-angle spinning–nuclear magnetic resonance, NH 3 temperature-programmed desorption, transmission electron microscopy, H 2 temperature-programmed reduction (TPR), 57...
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