The proximity of aluminium atoms influences the reaction pathway of ethanol transformation over zeolite ZSM-5.

ABSTRACT: The organization of aluminium atoms in zeolites affects their catalytic properties. Here we demonstrate that the aluminium distribution is a key parameter controlling the reaction pathway of acid catalysed reactions over ZSM-5 zeolites. We study ethanol transformation over two ZSM-5 samples with similar Si/Al ratios of ~15, and with aluminium atoms located mainly at the channel intersections but differently distributed in the framework. One of the samples contains mostly isolated aluminium atoms while the other has a large fraction of two aluminium atoms located in one ring. The FT-IR time-resolved operando study, supported by catalytic results, reveals that the reaction pathway in ethanol transformation over ZSM-5 is controlled by the proximity of aluminium atoms in the framework. ZSM-5 c

SUBMITTER: Golabek K 

PROVIDER: S-EPMC9814039 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature