Biomass-mediated ZSM-5 zeolite synthesis: when self-assembly allows to cross the Si/Al lower limit

A family of Al-rich ZSM-5 zeolites with Si/Al = 8 ± 0.5 was prepared according to a biomass-mediated supramolecular approach. A combination of advanced characterisation techniques and periodic density functional theory (DFT) calculations unraveled the purity and stability of un-expected Al-enriched...

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Detalles Bibliográficos
Autores principales: Pereira, Marcelo Maciel, Gomes, Elisa Silva, Silva, Alessandra Vieira, Pinar, Ana Belen, Willinger, Marc-Georg, Shanmugam, Sangaraju, Chizallet, Céline, Laugel, Guillaume, Losch, Pit, Louis, Benoît
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2018
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6115686/
https://www.ncbi.nlm.nih.gov/pubmed/30310584
http://dx.doi.org/10.1039/c8sc01675e
Descripción
Sumario:A family of Al-rich ZSM-5 zeolites with Si/Al = 8 ± 0.5 was prepared according to a biomass-mediated supramolecular approach. A combination of advanced characterisation techniques and periodic density functional theory (DFT) calculations unraveled the purity and stability of un-expected Al-enriched ZSM-5 structures, hence allowing to cross the frontier of Si/Al lower limit. In addition, these Al-rich ZSM-5 zeolites demonstrated high catalytic activity in n-hexane cracking and methanol conversion into hydrocarbons, being in line with the presence of numerous Brønsted acid sites.

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