Novelty of iron-exchanged heteropolyacid encapsulated inside ZIF-8 as an active and superior catalyst in the esterification of furfuryl alcohol and acetic acid

Malkar, Radhika S.; Daly, Helen; Hardacre, Christopher; Yadav, Ganapati D.

doi:10.1039/c9re00167k

Cited by 13 publications

(2 citation statements)

References 60 publications

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“…[ 51 ] In ZIF‐8@MOFBOTs, the bands located at 1420,1140, and 1000 cm –1 were assigned to the CN stretching vibration and the bands around 1500 and 1250 cm –1 were attributed to the stretching of the imidazole ring. [ 52 ] These data further confirm the integration of the MOF nanocrystals with the magnetic helical microstructures. To demonstrate the preservation of the crystalline structure of the MOF nanocrystals and of the magnetic template during the fabrication process, we performed X‐ray diffraction (XRD) analysis.…”

Section: Resultssupporting

confidence: 66%

Biotemplating of Metal–Organic Framework Nanocrystals for Applications in Small‐Scale Robotics

Terzopoulou

Palacios‐Corella

Franco

et al. 2021

Adv Funct Materials

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Biotemplating is a powerful approach for manufacturing small-scale devices.Here, the assembly of metal-organic framework (MOF) nanocrystals onto biotemplated magnetic helical structures on the cyanobacterium Spirulina platensis is reported. It is demonstrated that the authors' approach is universal and can be used to equip biotemplated structures with different functional MOF systems. The successful assembly of MOF nanocrystals on magnetically coated helical biotemplates is achieved by decorating the magnetic surface with gelatin, a naturally occurring macromolecule with synthon moieties that allows anchoring of the MOF nanocrystals via electrostatic interactions. Furthermore, as gelatin is a thermally responsive material, it can serve to free the magnetic biotemplates from the MOF nanocrystal cargoes. As such, the systems can be used as highly integrated magnetically driven microrobots with multiple functionalities. To this end, the potential of these composite helical architectures is demonstrated as MOF-based small-scale robots with applications in biomedicine and environmental remediation.

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Section: Resultssupporting

confidence: 66%

Biotemplating of Metal–Organic Framework Nanocrystals for Applications in Small‐Scale Robotics

Terzopoulou

Palacios‐Corella

Franco

et al. 2021

Adv Funct Materials

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“…The study on esterification of FA to FAc is limited to very few reports, where a metal ion-exchanged heteropoly acid encapsulated in a MOF is reported. 4 In this study, Fe-DTP@ZIF-8 showed a superior catalytic activity of 76% FAc yield. There are few reports on the one-pot synthesis of FAc from furfural, where the reaction occurs via the hydrogenation-esterification route.…”

Section: Introductionmentioning

confidence: 55%

Selective synthesis of furfuryl acetate over solid acid catalysts and active site exploration using density functional theory

Vaishnavi

Sujith

Vaibhava

et al. 2022

Catal. Sci. Technol.

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Fischer Esterification of Benzoic Acid and Polyhydric Alcohols Catalyzed by Basic Ionic Liquids of Bisimidazolium Tungstates

Wang

Tao

et al. 2023

ChemistrySelect

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Fischer esterification referred to the reaction of carboxylic acids and alcohols, which was generally catalyzed by Brönsted or Lewis acidic catalysts. Basic ionic liquids with the nucleophilic anion were generally considered incapable of catalyzing this reaction due to sufficiency of electrons or the lack of ionizable protons. Herein, bisimidazolium tungstates were found be able to catalyze Fischer esterification of ethylene glycol (EG) and benzoic acid relying on the nucleophilic WO42− anion. The mechanism studies indicated that C6H5COO− and H−WO42− anionic intermediate was formed between benzoic acid and WO42− via hydrogen‐bond interaction under the influence of hydroxyl of EG. This intermediate could further release H atom to accelerate the reaction speed of Fischer esterification, which was similar catalytic process to that of Brönsted acidic catalysts. Furthermore, other nucleophilic anions (CO32−, OH−, OAc−, C6H5COO−) had little catalytic capacity in the reaction. This suggested that the strength of anionic nucleophilic ability played an important role in the esterification reaction.

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Novelty of iron-exchanged heteropolyacid encapsulated inside ZIF-8 as an active and superior catalyst in the esterification of furfuryl alcohol and acetic acid

Abstract: Metal-exchanged dodecatungstophosphoric acids encapsulated inside ZIF-8 framework were synthesized to produce a variety of active catalysts M-DTP@ZIF-8 for the formation of furfuryl acetate from the esterification of furfuryl alcohol and acetic acid.

Cited by 13 publications

References 60 publications

Biotemplating of Metal–Organic Framework Nanocrystals for Applications in Small‐Scale Robotics

Biotemplating of Metal–Organic Framework Nanocrystals for Applications in Small‐Scale Robotics

Selective synthesis of furfuryl acetate over solid acid catalysts and active site exploration using density functional theory

Fischer Esterification of Benzoic Acid and Polyhydric Alcohols Catalyzed by Basic Ionic Liquids of Bisimidazolium Tungstates

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