Title: Exploring the void structure and activity of RUB-39 based expanded materials using the hydroconversion of decane
Authors: Tijsebaert, Bart ×
Henry, Mathieu
Gies, Hermann
Xiao, Feng-Shou
Zhang, Weiping
Bao, Xinhe
Imai, Hiroyuki
Tatsumi, Takashi
Mueller, Ulrich
Yilmaz, Bilge
Jacobs, Pierre
De Vos, Dirk #
Issue Date: Aug-2011
Publisher: Academic Press
Series Title: Journal of Catalysis vol:282 issue:1 pages:47-53
Abstract: The layered silicate RUB-39 can be transformed by topotactic condensation into RUB-41 (RRO), a zeolite with 8- and 10- ring pores. If the layered RUB-39 is first silylated with dichlorodimethylsilane (DCDMS) or hexamethyldisiloxane (HMDS), an interlayer expanded structure is created after calcination. The DCDMS expanded material contains 10- and 12-ring pores instead of 8- and 10-ring pores. Detailed physicochemical characterization showed that the Al content is not significantly changed during the expansion. In the hydroconversion of decane, the expanded materials have a significantly increased activity, as demonstrated by the lower temperatures at which isomerization and cracking occur. Detailed comparison of the product selectivities obtained with RUB-41 or with its expanded analogs shows that the void structure of the expanded materials is significantly less constrained, as reflected in the distribution of methylnonane isomers, of the ethyloctane vs. methylnonane isomers, and in the ratio of monobranched vs. dibranched isomers. (C) 2011 Elsevier Inc. All rights reserved.
ISSN: 0021-9517
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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