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Preparation and catalytic properties of a novel aluminosilicate zeolite with intersecting 14*12-Ring pore sizes

Authors :
Boting Yang
Tianxiao Cui
Lingling Wen
Ying Chen
Source :
Microporous and Mesoporous Materials. 303:110251
Publication Year :
2020
Publisher :
Elsevier BV, 2020.

Abstract

A novel ferrierite type zeolite named as IEZ-Al-PLS-3(S4R) with pore sizes of 14 × 12-ring (R) was post synthesized by simply interlayer silylation of lamellar precursor Al-PLS-3 taking 1,3,5,7-tetramethylcyclosilone (TMCS) as silane. Its catalytic properties were tested by isomerization/disproportionation of m-xylene, alkylation/acylation of anisole with benzyl alcohol/acetic anhydride. The catalytic performance of IEZ-Al-PLS-3(S4R) was compared with Al-PLS-3 (10 × 8-R) and IEZ-Al-PLS-3(1Si) (12 × 10-R) which were prepared by calcination or silylation using dimethoxydimethylsilane (DEDMS) as silane of as made Al-PLS-3 respectively. Since these materials have the same laminates composition, the differences of catalytic performance can be considered as the result of different pore sizes. We also prepared conventional 10-R zeolite ZSM-5 and 12-R zeolite Beta for control experiments. IEZ-Al-PLS-3(S4R) showed even higher catalytic activities than Beta as a result of its enlarged 14-R pore size.

Details

ISSN :
13871811
Volume :
303
Database :
OpenAIRE
Journal :
Microporous and Mesoporous Materials
Accession number :
edsair.doi...........80cea102793d992d7a6d89214caa3df0
Full Text :
https://doi.org/10.1016/j.micromeso.2020.110251