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

ABSTRACT: 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.

SUBMITTER: Pereira MM

PROVIDER: S-EPMC6115686 | biostudies-other | 2018 Aug

REPOSITORIES: biostudies-other

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

Pereira Marcelo Maciel MM Gomes Elisa Silva ES Silva Alessandra Vieira AV Pinar Ana Belen AB Willinger Marc-Georg MG Shanmugam Sangaraju S Chizallet Céline C Laugel Guillaume G Losch Pit P Louis Benoît B

Chemical science 20180705 31

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 <i>n</i>-hexane cracking and methanol con ...[more]

PMID: 30310584

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