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New synthesis routes and catalytic applications of ferrierite crystals. Part 1: 1,8-Diaminooctane as a new OSDA

Abstract : Ferrierite zeolite crystals were successfully prepared by a long amine as 1,8diaminoctane (DAO) as organic structure directing agent. By comparison, shorter amine, i.e. ethylenediamine (EN), was also used as OSDA. Results shows that the presence of DAO reduces the crystallization time and allows to obtain single FER-type crystlas with smaller size and higher acidity, being these significant parameters to take into account when zeolites are applied in catalysis. The obtained samples were characterized with XRD, TG/DTA, SEM, N 2 adsoprtion/desorption, FTIR and 27 Al-NMR. In particular, TGA clearly shows that DAO may be accommodate in zeolite framework and theoretical modeling suggests a preferential location in the 10-MR ring channels.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-03035145
Contributor : Valentin Valtchev Connect in order to contact the contributor
Submitted on : Wednesday, December 2, 2020 - 9:27:31 AM
Last modification on : Friday, August 5, 2022 - 10:59:10 AM
Long-term archiving on: : Wednesday, March 3, 2021 - 6:31:19 PM

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Enrico Catizzone, Massimo Migliori, Tzonka Mineva, Stijn van Daele, Valentin Valtchev, et al.. New synthesis routes and catalytic applications of ferrierite crystals. Part 1: 1,8-Diaminooctane as a new OSDA. Microporous and Mesoporous Materials, Elsevier, 2020, 296, pp.109987. ⟨10.1016/j.micromeso.2019.109987⟩. ⟨hal-03035145⟩

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