Nanoscale center-hollowed hexagon MnCo2O4 spinel catalyzed aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid

Zhang, Shuang; Sun, Xiaozhu; Zheng, Zaihang; Zhang, Long

doi:10.1016/j.catcom.2018.05.004

Cited by 59 publications

(33 citation statements)

References 29 publications

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“…Based on the above discussion and catalyst characterization results and the pathway proposed previously forM n-based catalysts for oxidation of HMF, [16,28,41,42] ap lausible reaction mechanism for the oxidation of HMF to FDCA over the Co-Mn mixed-oxide catalyst was proposed( Scheme 1). According to this mechanism,t he oxidation of HMF to FDCA proceeds through the Mn 4 + /Mn 3 + redox cycle.…”

Section: Reaction Mechanismmentioning

confidence: 90%

Inexpensive but Highly Efficient Co–Mn Mixed‐Oxide Catalysts for Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid

et al. 2018

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A highly active and inexpensive Co-Mn mixed-oxide catalyst was prepared and used for selective oxidation of 5-hydroxymethylfurfural (HMF) into 2, 5-furandicarboxylic acid (FDCA). Co-Mn mixed-oxide catalysts with different Co/Mn molar ratios were prepared through a simple solid-state grinding method-a low-cost and green catalyst preparation method. The activity of these catalysts was evaluated for selective aerobic oxidation of HMF into FDCA in water. Excellent HMF conversion (99 %) and FDCA yield (95 % ) were obtained under the best reaction conditions (i.e., 120 °C, 5 h, Co-Mn mixed-oxide catalyst with a Co/Mn molar ratio of 0.25 calcined at 300 °C (Co-Mn-0.25) and 1 MPa O ). The catalyst could be reused five times without a significant decrease in activity. The results demonstrated that the catalytic activity and selectivity of the Co-Mn mixed-oxide catalysts prepared through solid-state grinding were superior to the same Co-Mn catalyst prepared through a conventional coprecipitation method. The high catalytic activity of the Co-Mn-0.25 catalyst was attributed to its high lattice oxygen mobility and the presence of different valence states of manganese. The high activity and low cost of the Co-Mn mixed-oxide catalysts prepared by solid-state grinding make it promising for industrial application for the manufacturing of polyethylene furanoate, a bioreplacement for polyethylene terephthalate, from sustainable bioresources.

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Section: Reaction Mechanismmentioning

confidence: 90%

Inexpensive but Highly Efficient Co–Mn Mixed‐Oxide Catalysts for Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid

et al. 2018

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“…This study also pointed out the high concentrations of Mn 4+ and Ce 3+ on the MnO x -CeO 2 surface play a key role as active sites for the HMF oxidation. Superior oxygen mobility and various oxidation states are widely accepted to elucidate the remarkable performance of multitudinous Mn-based composites, such as Co-Mn-0.25 [74], MnCo 2 O 4 [75], and Mn-Fe mixed oxide [76]. Yu et al [77] further proposed that active M 3+ O(-Mn 4+ ) 2 clusters in (Fe, Co, Ni)-doped MnO x catalysts were the principal active sites for the aerobic oxidation of HMF (Fig.…”

Section: Cheap Metal and Carbon-based Catalystsmentioning

confidence: 99%

2,5-Furandicarboxylic acid production via catalytic oxidation of 5-hydroxymethylfurfural: Catalysts, processes and reaction mechanism

Chen

Wang

Zhu

et al. 2021

Journal of Energy Chemistry

165

102

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“…Also, binary or mixed oxides have been used in the aerobic oxidation of HMF to FDCA, whereby Han et al ( 2017 ) synthesized the MnO x -CeO 2 (Mn/Ce = 6) catalyst and achieved 91% FDCA yield at 110°C temperature in KHCO 3 media after 15 h. Structural analysis revealed that Mn 4+ and Ce 3+ ions functioned as active sites for HMF oxidation to FDCA. Zhang et al ( 2018b ) investigated the catalytic activity of the MnCo 2 O 4 with a Mn/Co molar ratio of 1:2 over the conversion of HMF to FDCA at 100°C under 10 bar O 2 pressure, and observed 70.9% FDCA yield with 99.5% HMF conversion after 24 h. Improved catalytic activity was caused due to the Mn 3+ and increased oxygen mobility and reducibility.…”

Section: Heterogeneous Catalytic Oxidation Of Hmf To Fdcamentioning

confidence: 99%

Heterogeneous Catalytic Conversion of Sugars Into 2,5-Furandicarboxylic Acid

et al. 2020

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Achieving the goal of living in a sustainable and greener society, will need the chemical industry to move away from petroleum-based refineries to bio-refineries. This aim can be achieved by using biomass as the feedstock to produce platform chemicals. A platform chemical, 2,5-furandicarboxylic acid (FDCA) has gained much attention in recent years because of its chemical attributes as it can be used to produce green polymers such polyethylene 2,5-furandicarboxylate (PEF) that is an alternative to polyethylene terephthalate (PET) produced from fossil fuel. Typically, 5-(hydroxymethyl)furfural (HMF), an intermediate product of the acid dehydration of sugars, can be used as a precursor for the production of FDCA, and this transformation reaction has been extensively studied using both homogeneous and heterogeneous catalysts in different reaction media such as basic, neutral, and acidic media. In addition to the use of catalysts, conversion of HMF to FDCA occurs in the presence of oxidants such as air, O 2 , H 2 O 2 , and t-BuOOH. Among them, O 2 has been the preferred oxidant due to its low cost and availability. However, due to the low stability of HMF and high processing cost to convert HMF to FDCA, researchers are studying the direct conversion of carbohydrates and biomass using both a single-and multi-phase approach for FDCA production. As there are issues arising from FDCA purification, much attention is now being paid to produce FDCA derivatives such as 2, 5-furandicarboxylic acid dimethyl ester (FDCDM) to circumvent these problems. Despite these technical barriers, what is pivotal to achieve in a cost-effective manner high yields of FDCA and derivatives, is the design of highly efficient, stable, and selective multi-functional catalysts. In this review, we summarize in detail the advances in the reaction chemistry, catalysts, and operating conditions for FDCA production from sugars and carbohydrates.

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Nanoscale center-hollowed hexagon MnCo2O4 spinel catalyzed aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid

Cited by 59 publications

References 29 publications

Inexpensive but Highly Efficient Co–Mn Mixed‐Oxide Catalysts for Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid

Inexpensive but Highly Efficient Co–Mn Mixed‐Oxide Catalysts for Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid

2,5-Furandicarboxylic acid production via catalytic oxidation of 5-hydroxymethylfurfural: Catalysts, processes and reaction mechanism

Heterogeneous Catalytic Conversion of Sugars Into 2,5-Furandicarboxylic Acid

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