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Postsynthesis of FAU-type stannosilicate as efficient heterogeneous catalyst for Baeyer-Villiger oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
38908 45796 2016 10 PDF Available
Title
Postsynthesis of FAU-type stannosilicate as efficient heterogeneous catalyst for Baeyer-Villiger oxidation
Abstract

•Sn-Y zeolite with hierarchical pore system is successfully prepared using the atom-planting method.•Sn ions are tetrahedrally incorporated into the zeolite framework by the reaction between the SnCl4 molecules and the “silanol nests”.•A precise acid treatment determines not only the quantity but also the quality of the inserted Sn species.•Sn-Y exhibits a high catalytic activity in the Baeyer-Villiger oxidation using hydrogen peroxide or tert-butyl hydroperoxide as oxidant.

Sn-Y zeolite with hierarchical pore system was prepared using the atom-planting method from properly dealuminated USY zeolite and SnCl4 vapor. Sn ions were tetrahedrally incorporated into the zeolite framework by the reaction between the SnCl4 molecules and the “silanol nests” generated by steaming and acid treatment. The amount of incorporated Sn depended closely on the dealumination degree, in which the maximum Sn content of 2.6 wt.% was achieved when the parent USY zeolite was treated by precisely controlled acid treatment. Compared with Sn-MFI, Sn-MWW, Sn-MCM-41, hydrothermally synthesized or postsynthesized Sn-Beta, thus prepared Sn-Y zeolite showed excellent catalytic properties in the Baeyer-Villiger oxidation of 2-adamantanone using hydrogen peroxide or tert-butyl hydroperoxide as oxidant, which was mainly attributed to the open pore system contributed by 3-dimensional 12-membered ring channels and dealumination-derived intracrystal mesoporosity.

Graphical abstractFAU-type stannosilicate (Sn-Y) with hierarchical pore structure, postsynthesized by acid treatment and atom-planting method, shows excellent catalytic properties in the Baeyer-Villiger oxidation of ketones using hydrogen peroxide or tert-butyl hydroperoxide as an oxidant.Figure optionsDownload full-size imageDownload high-quality image (132 K)Download as PowerPoint slide

Keywords
USY zeolite; Dealumination; Stannosilicate; Postsynthesis; Baeyer-Villiger oxidation
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Postsynthesis of FAU-type stannosilicate as efficient heterogeneous catalyst for Baeyer-Villiger oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 519, 5 June 2016, Pages 155–164
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us