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Synergistic Fe(Iii) and Acid Sites in Siw@Mil-100(Fe) Catalyst Prompt the Synthesis of P-Xylene from Biomass Derivatives
38 Pages Posted: 8 Dec 2022 See all articles by Wenjing WangWenjing Wangaffiliation not provided to SSRN Qing WangShanghaiTech University Ruofan Liaffiliation not provided to SSRN Di Zengaffiliation not provided to SSRN Juxue Wangaffiliation not provided to SSRN Yu Zhangaffiliation not provided to SSRN Ling Zhangaffiliation not provided to SSRN Haiming Liuaffiliation not provided to SSRN Wenzhong Wangaffiliation not provided to SSRN AbstractThe construction of aromatic skeleton structures by Diels-Alder reaction is a synthetic route to obtain substitutes for petrochemical products by using biomass as raw materials. In this work, a class of SiW@MIL-100(Fe)-n(n=1-4) catalyst containing silicotungstic acid(SiW) encaged in MIL-100(Fe) was synthesized for mimic synthesis of p-xylene(PX). SiW@MIL-100(Fe)-3 catalyzed 2,5-dimethylfuran and acrylic acid(AA) to aromatic products(yield 94%, PX yield=80.1 %) at 140 鈩兟爑nder ambient pressure. The synergistic effect between metal centers and Lewis/Br酶nsted acid is increased due to confinement effect in the cage of MIL-100(Fe). The Fe(III) sites catalyzed decarboxylation of AA via a free radical process, avoiding formation of 2,5-dimethylbenzoic acid intermediate. Two types of acid sites along with reactants as well as reversibly adsorbed water promoted the formation of hydrogen bonds with protons from SiW, which accelerates the dehydration reaction. This strategy provides a route for construction of aromatic skeletons from biomass derivatives by MOF-based solid acids. Keywords: Acid catalysis, MIL-100(Fe), Polyoxometalates, Biomass derivatives, p-Xylene Suggested Citation: Suggested Citation Wang, Wenjing and Wang, Qing and Li, Ruofan and Zeng, Di and Wang, Juxue and Zhang, Yu and Zhang, Ling and Liu, Haiming and Wang, Wenzhong, Synergistic Fe(Iii) and Acid Sites in Siw@Mil-100(Fe) Catalyst Prompt the Synthesis of P-Xylene from Biomass Derivatives. Available at SSRN: https://ssrn.com/abstract=4296898 or http://dx.doi.org/10.2139/ssrn.4296898 Wenjing Wang affiliation not provided to SSRN ( email )No Address Available Qing Wang ShanghaiTech University ( email )393 Middle Huaxia Road, PudongShanghai, 201210China Ruofan Li affiliation not provided to SSRN ( email )No Address Available Di Zeng affiliation not provided to SSRN ( email )No Address Available Juxue Wang affiliation not provided to SSRN ( email )No Address Available Yu Zhang affiliation not provided to SSRN ( email )No Address Available Ling Zhang affiliation not provided to SSRN ( email )No Address Available Haiming Liu affiliation not provided to SSRN ( email )No Address Available Wenzhong Wang (Contact Author) affiliation not provided to SSRN ( email )No Address Available |
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