Sulfonium-based organic structure-directing agents for microporous aluminophosphate synthesis

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Title
Sulfonium-based organic structure-directing agents for microporous aluminophosphate synthesis
Author(s)
Sungjune Lee; Changbum Jo; Hongjun Park; Jaeheon Kim; Ryong Ryoo
Publication Date
2019-05
Journal
MICROPOROUS AND MESOPOROUS MATERIALS, v.280, no., pp.75 - 81
Publisher
ELSEVIER SCIENCE BV
Abstract
Sulfur-centered phenyl, n-butyl, p-tolyl, and benzyl sulfoniums and sulfides were tested as organic structure-directing agents (SDAs) for the synthesis of crystalline microporous aluminophosphates (AlPOs) over various ranges of gel compositions, hydrothermal treatment temperatures, and crystallization times. Among the investigated compounds, triphenylsulfonium gave single-phase products of ATS-type AlPO and silicoaluminophosphate. Other sulfoniums yielded only non-porous, dense crystalline AlPOs. On the other hand, diaryl sulfides gave a tiny amount of AFI-type AlPO amid tridymite and amorphous phases. Based on the results, it was found to be reasonable that weakly basic sulfide could hardly act as a zeotype SDA due to the low protonation to sulfonium at the present synthesis pH. © 2019 Elsevier Inc. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/5639
ISSN
1387-1811
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
Microporous and Mesoporous Materials 280 (2019) 75–81.pdfDownload

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