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)
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Holm et al. (2009) studied this question.
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