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Updated: Feb 4, 2026

Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5
Published on: August 25, 2016
Biomass-mediated ZSM-5 zeolite synthesis: when self-assembly allows to cross the Si/Al lower limit
Marcelo Maciel Pereira1, Elisa Silva Gomes1, Alessandra Vieira Silva1
1Universidade Federal do Rio de Janeiro , Centro de Tecnologia , Departamento de Química Inorgânica , Avenida Athos da Silveira Ramos , 149, Ilha do Fundão , 21941-909 , Rio de Janeiro , RJ , Brazil.
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.
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