Synthesis of Silicate Zeolite Analogues Using Organic Sulfonium Compounds as Structure-Directing Agents

A microporous crystalline silica zeolite of the MEL structure type and three other zeolite analogues composed of germanosilicate frameworks were synthesized using tributylsulfonium, triphenylsulfonium, or tri(para-tolyl) sulfonium as the structure-directing agent. The germanosilicates thus obtained had ISV, ITT, or a new zeolite structure depending on the synthesis conditions. The structure of the new germanosilicate was solved using X-ray powder diffraction data with the aid of a charge-flipping method. The solution indicated a crystal structure belonging to the P63/mmc space group with cell parameters of a = 16.2003 angstrom and c = 21.8579 angstrom. After calcination, the new germanosilicate material exhibited two types of accessible micropores with diameters of 0.61 and 0.78 nm.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2015-10
Language
English
Keywords

CATALYSTS; CATIONS

Citation

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.54, no.43, pp.12805 - 12808

ISSN
1433-7851
DOI
10.1002/anie.201506678
URI
http://hdl.handle.net/10203/205240
Appears in Collection
CH-Journal Papers(저널논문)
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