Aerobic oxidation of 5-hydroxymethylfurfural to 2,5-difurancarboxylic acid over Pd-Au nanoparticles supported on Mg-Al hydrotalcite

Xia, Haian; An, Jiahuan; Hong, Mei; Xu, Shimei; Zhang, Lei; Zuo, Songlin

doi:10.1016/j.cattod.2018.05.050

Cited by 93 publications

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“…It has been revealed that the application of bimetallic catalysts could remarkably boost the catalytic activity and improve the stability [37][38][39][40]. Zhu et al reported that the bimetallic Ni-Re catalysts had better hydrodeoxygenation performances of phenol into benzene compared to the monometallic Ni catalyst due to the geometric effect and electronic effect after the introduction of Re metal [38].…”

Section: Introductionmentioning

confidence: 99%

Efficient Hydrogenation of Xylose and Hemicellulosic Hydrolysate to Xylitol over Ni-Re Bimetallic Nanoparticle Catalyst

Xia

Zhang

et al. 2019

Nanomaterials

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A disadvantage of the commercial Raney Ni is that the Ni active sites are prone to leaching and deactivation in the hydrogenation of xylose to xylitol. To explore a more stable and robust catalyst, activated carbon (AC) supported Ni-Re bimetallic catalysts (Ni-Re/AC) were synthesized and used to hydrogenate xylose and hemicellulosic hydrolysate into xylitol under mild reaction conditions. In contrast to the monometallic Ni/AC catalyst, bimetallic Ni-Re/AC exhibited better catalytic performances in the hydrogenation of xylose to xylitol. A high xylitol yield up to 98% was achieved over Ni-Re/AC (n Ni :n Re = 1:1) at 140 • C for 1 h. In addition, these bimetallic catalysts also had superior hydrogenation performance in the conversion of the hydrolysate derived from the hydrolysis reaction of the hemicellulose of Camellia oleifera shell. The characterization results showed that the addition of Re led to the formation of Ni-Re alloy and improved the dispersion of Ni active sites. The recycled experimental results revealed that the monometallic Ni and the bimetallic Ni-Re catalysts tended to deactivate, but the introduction of Re was able to remarkably improve the catalyst's stability and reduce the Ni leaching during the hydrogenation reaction.

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Section: Introductionmentioning

confidence: 99%

Efficient Hydrogenation of Xylose and Hemicellulosic Hydrolysate to Xylitol over Ni-Re Bimetallic Nanoparticle Catalyst

Xia

Zhang

et al. 2019

Nanomaterials

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“…During the preparation process, with the increase of the amount of Pd, more Pd nanoparticles distributed on the catalyst surface can be observed. According to the HR-TEM diagram, the lattice spacing of Pd nanoparticles is about 0.223 nm, [29] which indicates that Pd (111) is the main crystal plane of Pd/MC catalyst. This result further showed that the Pd nanoparticles were successfully grafted to MC supporter.…”

Section: Catalyst Characterizationsmentioning

confidence: 99%

“…because the use of renewable oxygen/air and recyclable heterogeneous catalysts follows the concept of "green and sustainable chemistry". [23,24] Noble metal catalysts including Pt, Pd, Au, Ru, Ag, and the bimetallic nanoparticles [20,[25][26][27][28][29][30][31] usually exhibit better catalytic activity and FDCA selectivity under mild reaction conditions. Zhang immobilized Pa nanoparticles on the core-shell structure of C@Fe 3 O 4 and prepared FDCA at 80°C.…”

Section: Introductionmentioning

confidence: 99%

Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid over MnO_x‐CeO₂ Supported Palladium Nanocatalyst under Aqueous Conditions

et al. 2020

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Selective aerobic oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) into high value‐added 2,5‐furandicarboxylic acid (FDCA) is regarded as one of the most attractive biomass transformations due to a wide range of its application prospects, particularly as an important renewable alternative to petroleum‐derived terephthalic acid in the synthesis of useful polymers. Herein, a novel MnOx−CeO2 (MC) supported palladium catalyst was synthesized and applied for the aerobic oxidation of HMF into FDCA in KHCO3 aqueous solution. The physical and chemical properties of the obtained catalysts were systematically characterized by TEM, N2 adsorption and desorption, XRD, TG, XPS, and H2‐TPR characterization methods. And the highest yield of FDCA at 92.5 % was achieved under the optimal reaction conditions. Moreover, regeneration tests revealed the synthesized Pd/MC catalyst can be recovered and reused at least five times without significant loss of catalytic activity. The developed facile reaction system with Pd/MC catalysts offers a new route to large‐scale and economically viable processes for the oxidation of HMF into FDCA.

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“…This produced FFCA has the options of producing FDCA or being oxidized to HMFCA which will again show the same behavior of no further oxidation. Recently, similar Pd-Au bimetallic catalysts were also synthesized on hydrotalcite (HT) support by Xia et al and their catalytic performance compared with that of their monometallic counterparts Pd/HT and Au/HT catalysts [74]. High FDCA yield (up to 90%) was achieved over bimetallic Pd-Au/Ht catalyst with Au:Pd = 4:1 at 60 • C and 1 bar O 2 pressure after 6 h of reaction.…”

Section: Pd-based Catalystsmentioning

confidence: 99%

Recent Developments in Metal-Based Catalysts for the Catalytic Aerobic Oxidation of 5-Hydroxymethyl-Furfural to 2,5-Furandicarboxylic Acid

et al. 2020

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Biomass can be used as an alternative feedstock for the production of fuels and valuable chemicals, which can alleviate the current global dependence on fossil resources. One of the biomass-derived molecules, 2,5-furandicarboxylic acid (FDCA), has attracted great interest due to its broad applications in various fields. In particular, it is considered a potential substitute of petrochemical-derived terephthalic acid (PTA), and can be used for the preparation of valuable bio-based polyesters such as polyethylene furanoate (PEF). Therefore, significant attempts have been made for efficient production of FDCA and the catalytic chemical approach for FDCA production, typically from a biomass-derived platform molecule, 5-hydroxymethylfurfural (HMF), over metal catalysts is the focus of great research attention. In this review, we provide a systematic critical overview of recent progress in the use of different metal-based catalysts for the catalytic aerobic oxidation of HMF to FDCA. Catalytic performance and reaction mechanisms are described and discussed to understand the details of this reaction. Special emphasis is also placed on the base-free system, which is a more green process considering the environmental aspect. Finally, conclusions are given and perspectives related to further development of the catalysts are also provided, for the potential production of FDCA on a large scale in an economical and environmentally friendly manner.

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Aerobic oxidation of 5-hydroxymethylfurfural to 2,5-difurancarboxylic acid over Pd-Au nanoparticles supported on Mg-Al hydrotalcite

Cited by 93 publications

References 50 publications

Efficient Hydrogenation of Xylose and Hemicellulosic Hydrolysate to Xylitol over Ni-Re Bimetallic Nanoparticle Catalyst

Efficient Hydrogenation of Xylose and Hemicellulosic Hydrolysate to Xylitol over Ni-Re Bimetallic Nanoparticle Catalyst

Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid over MnO_x‐CeO₂ Supported Palladium Nanocatalyst under Aqueous Conditions

Recent Developments in Metal-Based Catalysts for the Catalytic Aerobic Oxidation of 5-Hydroxymethyl-Furfural to 2,5-Furandicarboxylic Acid

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Aerobic oxidation of 5-hydroxymethylfurfural to 2,5-difurancarboxylic acid over Pd-Au nanoparticles supported on Mg-Al hydrotalcite

Cited by 93 publications

References 50 publications

Efficient Hydrogenation of Xylose and Hemicellulosic Hydrolysate to Xylitol over Ni-Re Bimetallic Nanoparticle Catalyst

Efficient Hydrogenation of Xylose and Hemicellulosic Hydrolysate to Xylitol over Ni-Re Bimetallic Nanoparticle Catalyst

Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid over MnOx‐CeO2 Supported Palladium Nanocatalyst under Aqueous Conditions

Recent Developments in Metal-Based Catalysts for the Catalytic Aerobic Oxidation of 5-Hydroxymethyl-Furfural to 2,5-Furandicarboxylic Acid

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Selective Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid over MnO_x‐CeO₂ Supported Palladium Nanocatalyst under Aqueous Conditions