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University of Sydney – Cascade response engineering on zirconia-supported mesoporous MFI zeolites with tunable Lewis–Brønsted acid web sites: a case of the one-pot conversion of furfural to γ-valerolactone

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September 28, 2020
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University of Sydney – Cascade response engineering on zirconia-supported mesoporous MFI zeolites with tunable Lewis–Brønsted acid web sites: a case of the one-pot conversion of furfural to γ-valerolactone
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University of Sydney –

University of Sydney –

Cascade response engineering on zirconia-supported mesoporous MFI zeolites with tunable Lewis–Brønsted acid web sites: a case of the one-pot conversion of furfural to γ-valerolactone†


Author affiliations



Corresponding authors


a


Heart for Nanomaterials and Chemical Reactions, Institute for Traditional Science (IBS), Daejeon 34141, Korea


Electronic mail:
rryoo@kaist.ac.kr


b


Faculty of Chemical Engineering, The University of Current South Wales, Sydney, NSW 2052, Australia


c


Laboratory for Catalysis Engineering, Faculty of Chemical and Biomolecular Engineering, Sydney Nano Institute, The University of Sydney, NSW 2006, Australia


d


Division of Chemistry, KAIST, Daejeon, Republic of Korea

Summary

Catalytic cascade reactions are strongly desired as a doubtless job of combining multistep reactions into a single catalytic reactor. Acceptable catalysts serene of multi-reactive web sites to catalyze cascade reactions in a sequential style are central to such efforts. Right here, we elaborate a bifunctional zeolite catalyst with terminate proximity of Brønsted and Lewis acid web sites via the synthesis of a mesoporous ZrO2[Al]MFI nanosponge (NS). The uncommon mesopores of the MFI-NS allow the confinement of zirconium oxide clusters (Lewis acid web sites, LA) for the length of the few-unit-cell-thin MFI aluminosilicate zeolite wall (Brønsted acid web sites, BA). This type of construction is clearly obvious from the conventional MFI zeolite, where the agglomeration of zirconium oxide clusters onto the exterior surface dwelling for the length of the crystal bulk will not be that you may per chance well well presumably possess, leading to segregated BA and LA web sites on the interior and exterior zeolite, respectively. By bringing the BA and LA within ZrO2[Al]MFI-NS 30, we uncovered a more surroundings pleasant catalytic route for the conversion of furfural (100% within 2 h) to γ-valerolactone (GVL) (83%). This route is finest evident when the prolonged molecular diffusion direction, in essentially the most crude case of physically blended ZrO2-(LA) and Al-zeolites (BA) (45% of GVL yield), is eliminated. Unlike the bifunctional ZrO2–Al-beta (GVL yield of 75%), where the BA concentration is very much compromised on the expense of LA formation, we also indicate that the ZrO2[Al]MFI-NS is able to help a excessive density and upright balance of every forms of acids.

University of Sydney - Graphical abstract: Cascade reaction engineering on zirconia-supported mesoporous MFI zeolites with tunable Lewis–Brønsted acid sites: a case of the one-pot conversion of furfural to γ-valerolactone

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University of Sydney – Supplementary recordsdata

University of Sydney – Article records


First published

24 Sep 2020

University of Sydney -

This text is Inaugurate Entry


University of Sydney - Creative Commons BY-NC license

RSC Adv., 2020,10, 35318-35328


University of Sydney -

Cascade response engineering on zirconia-supported mesoporous MFI zeolites with tunable Lewis–Brønsted acid web sites: a case of the one-pot conversion of furfural to γ-valerolactone

K. D. Kim, J. Kim, W. Y. Teoh, J. Kim, J. Huang and R. Ryoo,
RSC Adv., 2020, 10, 35318

DOI: 10.1039/D0RA06915A

This text is licensed under a Ingenious Commons Attribution-NonCommercial
3.0 Unported Licence
. Fabric from this text may per chance well additionally additionally be historical in other publications
on condition that the upright acknowledgement is given with the reproduced discipline matter
and it’s miles not historical for commercial functions.

Reproduced discipline matter can contain to be attributed as follows:

University of Sydney -

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