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Title: Molecular Shape Selectivity of EuO Zeolites
Authors: Souverijns, W ×
Rombouts, L
Martens, Johan
Jacobs, Pierre #
Issue Date: 1995
Publisher: ELSEVIER SCIENCE BV
Series Title: Microporous materials vol:4 issue:2-3 pages:123-130
Conference: date:KATHOLIEKE UNIV LEUVEN,CENTRUM OPPERVLAKTECH KATALYSE,B-3001 HEVERLEE,BELGIUM
Abstract: The micropores of the EUO zeolite consist of 10-membered ring (10-MR) channels with deep side-pockets circumscribed by 12-MRs. In decane isomerization and hydrocracking EUO zeolites crystallized in the presence of hexamethonium (HM) and dibenzyldimethylammonium (DBDMA) exhibit different molecular shape selective properties. The catalytic sites of EUO specimens crystallized with DBDMA are located in more spacious cavities than those of EUO crystals synthesized with HM. This disparity in molecular shape selectivity is explained by a different location of the framework aluminium atoms in the two materials, viz. by the absence of aluminium in the 10-MR channels in EUO-DBDMA. Such aluminium siting is in agreement with the location of the organic template cations in the pores of the as-synthesized zeolites suggested in literature and revealed by a molecular graphics modeling.
ISSN: 0927-6513
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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