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“One‐Pot” Ion‐Exchange and Mesopore Formation During Desilication
Author(s) -
Holm Martin Spangsberg,
Hansen Martin Kalmar,
Christensen Claus Hviid
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200801194
Subject(s) - chemistry , microporous material , calcination , mesoporous material , tetramethylammonium hydroxide , crystallinity , ion exchange , zeolite , hydroxide , chemical engineering , inorganic chemistry , ion , catalysis , organic chemistry , engineering , crystallography
A desilication protocol using tetramethylammonium hydroxide was applied to zeolite beta. The new route presented here integrates the desilication and ion‐exchange post‐treatment steps allowing for a subsequent ion‐exchange step to be avoided. It is shown that the acidic and highly mesoporous zeolite is obtained directly upon calcination. Thus, careful choice of base and post‐treatment conditions lead to the fabrication of a hierarchical meso ‐ and microporous structure with completely retained crystallinity.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)