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Rational design of bifunctional hierarchical Pd/SAPO-5 for the synthesis of tetrahydrofuran derivatives from furfural

Gao, L., Miletto, I., Ivaldi, C., Paul, G., Marchese, L., Coluccia, S., Jiang, F., Gianotti, E. and Pera-Titus, M. 2021. Rational design of bifunctional hierarchical Pd/SAPO-5 for the synthesis of tetrahydrofuran derivatives from furfural. Journal of Catalysis 397 , pp. 75-89. 10.1016/j.jcat.2021.03.003

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Abstract

The one-pot aldol condensation/crotonization reaction between furfural and methyl isobutyl ketone (MIBK), followed by hydrogenation with molecular H2, was implemented for preparing tetrahydrofuran derivatives. To this aim, we developed a robust Pd/HPSAPO-5 catalyst based on the crystalline silico-aluminophosphate SAPO-5 with hierarchical porosity and optimized silicon content. The hierarchical HPSAPO-5 catalyst was synthesized using a bottom-up method starting from pre-synthesized MCM-41, with the surfactant (CTAB) inside the mesopores, serving both as Si source and mesoporogen. NH3-TPD and FT-IR spectroscopy of adsorbed probe molecules combined with solid-state 1H MAS NMR were used to assess the nature, strength and accessibility of the acid sites. The structural and textural properties of the catalysts were investigated using X-ray diffraction (XRD) and N2 adsorption. HR-TEM was used to assess the dispersion and location of Pd nanoparticles on HPSAPO-5. The spent catalyst could be restored and reused after calcination.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Elsevier
ISSN: 0021-9517
Date of Acceptance: 2 March 2021
Last Modified: 21 Mar 2022 13:45
URI: https://orca.cardiff.ac.uk/id/eprint/148287

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