A novel magnetic palladium catalyst for the mild aerobic oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid in water

Mei, Nan; Liu, Bing; Zheng, Judun; Lv, Kangle; Tang, Dewei; Zhang, Zehui

doi:10.1039/c4cy01407c

Cited by 122 publications

(74 citation statements)

References 43 publications

(40 reference statements)

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“…The literature survey for the oxidation of HMF to FDCA indicated that this reaction has been performed using stoichiometric amounts of oxidants and expensive catalytic systems containing noble metals such as Pt [17][18][19][20][21][22], Pd [23][24][25][26], Au [27][28][29][30][31][32], Ru [33], or their alloys [34][35][36][37][38][39][40][41]. In addition, the presence of a base is crucial in order to facilitate the desorption of the resulted acid from the catalytic surface.…”

Section: Introductionmentioning

confidence: 99%

Selective oxidation of 5-hydroxymethyl furfural over non-precious metal heterogeneous catalysts

Neaţu

Marin

Florea

et al. 2016

Applied Catalysis B: Environmental

120

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Section: Introductionmentioning

confidence: 99%

Selective oxidation of 5-hydroxymethyl furfural over non-precious metal heterogeneous catalysts

Neaţu

Marin

Florea

et al. 2016

Applied Catalysis B: Environmental

120

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“…The oxidation of HMF or other furans to FDCA has been achieved mainly by metal-based catalysis [4][5][6][7]. Yet, the search for an efficient chemical process for converting HMF into valuable building blocks such as FDCA is still ongoing.…”

Section: Introductionmentioning

confidence: 99%

Conversion of Furans by Baeyer-Villiger Monooxygenases

Kumar

Fraaije

2017

Catalysts

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Various furans are considered as valuable platform chemicals as they can be derived from plant biomass. Yet, for their exploitation, follow-up chemistry is required. Here we demonstrate that Baeyer-Villiger monooxygenases (BVMOs) can be used as biocatalysts for the selective oxidation of several furans, including 5-(hydroxymethyl) furfural (HMF) and furfural. A total of 15 different BVMOs were tested for their activity on furfural, which revealed that most of the biocatalysts were active on this aromatic aldehyde. Phenylacetone monooxygenase (PAMO) and a mutant thereof (PAMO M446G ) were selected for studying their biocatalytic potential in converting furfural and some other furans. While BVMOs are usually known to form an ester or lactone as a 'normal' product by inserting an oxygen atom adjacent to the carbonyl carbon of the substrate, our results reveal that both biocatalysts produce furanoid acids as the main product from the corresponding aldehydes. Altogether, our study shows that BVMOs can be employed for the selective oxidation of furans.

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“…Excellent results were also achieved by the oxidation of HMF over C-Fe 3 O 4 -Pd catalyst in air and at room temperature with an appropriate reaction time. More importantly, the catalyst was easily recovered by an external magnet and reused without the loss of its catalytic activity [7]. Actually, epoxy systems have assorted and routinely applications as coating materials, adhesives and composites have dominant application position in contrast to other polymers.…”

Section: Introductionmentioning

confidence: 99%

Recycable complex catalysts immobilized on mercaptan-functionalized glass-polymer supports

2018

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The use of the mercaptan-functionalized bisphenol A diglycidyl ether epoxy (base material) encapsulated on glass core as matrices for metal catalysts was investigated. Here, the acquiring knowledge of recyclable palladium catalysts for organic reaction which can be mechanically separated from the reaction media and next use as a heterogeneous catalyst in large-scale industries was the most important goal. Homogeneous Pd precursor [PdCl 2 (PhCN) 2 ] has been heterogenized by attaching to prepared glass-polymeric supports via ligand exchange process. Collected research results indicate that mercaptans used to cure epoxy resin can greatly affect the catalytic properties of the epoxy resin with supported palladium catalyst. The epoxy system modified with mercaptans has a few possible catalytic coordination centers especially oxygen and sulfur to which the palladium ion can be bound. It should be noted that although various concentrations of palladium complex were used, the amount of metal attached to epoxide supports remained the same, that is below the sorption capacity of the polymers. Presented new type of glass-polymer supports comparing to other used corresponding organic carriers offers several practical advantages such as morphological and chemical structure of the matrix, which affect the properties of the heterogenized catalyst in the selected organic reactions: Heck reaction and hydrogenation reaction were investigated. The catalytic activity of all formulated systems was similar to homogeneous palladium precursor PdCl 2 (PhCN) 2 . The resulting glass-polymeric matrices and heterogenized palladium catalysts were characterized by varied research techniques such as surface analysis technique (ToF-SIMS) and scanning electron microscopy with energy-dispersive X-ray analyzer (SEM-EDX). We used likewise the atomic absorption spectroscopy (AAS) method to quantify the amount of palladium loaded -018-2335-9 in the recyclable support and also the BET method to determine specific pore size distribution parameters. Furthermore, XPS spectroscopy showed information about surface structure and chemical states in the palladium-supported catalysts.

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A novel magnetic palladium catalyst for the mild aerobic oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid in water

Abstract: Magnetically separable, graphene oxide-supported palladium nanoparticles showed high catalytic activity for the aerobic oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid.

Cited by 122 publications

References 43 publications

Selective oxidation of 5-hydroxymethyl furfural over non-precious metal heterogeneous catalysts

Selective oxidation of 5-hydroxymethyl furfural over non-precious metal heterogeneous catalysts

Conversion of Furans by Baeyer-Villiger Monooxygenases

Recycable complex catalysts immobilized on mercaptan-functionalized glass-polymer supports

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