• R. Obeso-Estrella
  • A. Simakov
  • M. Avalos-Borja
  • F. Castillón
  • E. Lugo
  • V. Petranovskii
Keywords: Ni-mordenite, SiO2/Al2O3 molar ratio, carbon nanotubes, NO reduction, UV-Vis


Mordenites with SiO2/Al2O3 molar ratio (MR) of 13, 20 and 90 were exchanged with a Ni2+. The samples were characterized by XRD, EDS, DRS and TEM. UV-Vis spectra of all Ni-exchanged samples were typical for a Ni(H2O)2+6 ions octahedrally coordinated by water molecules. In the UV range, samples with MR of 20 and 90 showed absorption around 250-300 nm due to partial dehydration on Ni2+ ions and their coordination with O2- of the zeolite framework. It was revealed that Ni species formed on mordenite NiNaMor13 with low molar ratio are weakly bound to the mordenite framework; as a consequence, high catalytic activity in NO reduction is observed. Easy red-ox transformation of such a species results in the activation of propene pyrolysis with formation of carbon nanostructures.


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How to Cite
Obeso-Estrella, R., Simakov, A., Avalos-Borja, M., Castillón, F., Lugo, E., & Petranovskii, V. (2020). Ni-MORDENITE SYSTEM: INFLUENCE OF SiO2/Al2O3 MOLAR RATIO ON THE CATALYTIC ACTIVITY IN NO REDUCTION. Revista Mexicana De Ingeniería Química, 11(3), 455-461. Retrieved from
Catalysis, kinetics and reactors