An Aluminosilicate Zeolite Containing Rings of Tetrahedral Atoms with All Odd Numbers from Five to Eleven
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SCOPUS
- Title
- An Aluminosilicate Zeolite Containing Rings of Tetrahedral Atoms with All Odd Numbers from Five to Eleven
- Authors
- Jo, Donghui; Zhang, Yaping; Lee, Jeong Hwan; Mayoral, Alvaro; Shin, Jiho; Kang, Na Young; Park, Yong-Ki; Hong, Suk Bong
- Date Issued
- 2021-03
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- Herein we report the synthesis, structure solution, and catalytic properties of PST-31, which has an unprecedented framework topology. This high-silica (Si/Al=16) zeolite was synthesized using a pyrazolium-based dication with a tetramethylene linker as an organic structure-directing agent (OSDA) in hydroxide media. The PST-31 structure is built from new building layers containing four-, five-, six-, and seven-membered rings, which are connected by single four-membered rings in the interlayer region to form a two-dimensional pore system. Its channels consist of [4.5(6).6.9.11] and [5.6.7.9.10.11] cavities and are thus delimited by nine-, ten-, and eleven-membered rings. The OSDA cations in as-synthesized PST-31 were determined to reside without disorder in the large [4(2).5(14).6(4).7(2).9(4)] cavities composed of smaller [4.5(6).6.9.11] and [5.6.7.9.10.11] ones, leading to a symmetry coincidence between the OSDA and the surrounding zeolite cavity. The proton form of PST-31 was found to be selective for the cracking of n-hexane to light olefins.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/106586
- DOI
- 10.1002/anie.202015483
- ISSN
- 1433-7851
- Article Type
- Article
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 60, no. 11, page. 5936 - 5940, 2021-03
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