Pickering HIPEs derived hierarchical porous nitrogen-doped carbon supported bimetallic AuPd catalyst for base-free aerobic oxidation of HMF to FDCA in water

Guan, Wen; Zhang, Yunlei; Wei, Yanan; Li, Bing; Feng, Yonghai; Yan, Changhao; Huo, Pengwei; Yan, Yongsheng

doi:10.1016/j.fuel.2020.118362

Cited by 34 publications

(27 citation statements)

References 50 publications

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“…Several papers reported also the use of Au alloyed with Pd for preventing Au deactivation promoted by the irreversible adsorption of intermediates over the Au surface. Guan et al [59] developed a novel hierarchical porous nitrogen-doped carbonsupported bimetallic Au/Pd catalyst possessing high basicity and efficient catalytic behavior. The maximum yield in FDCA reached 96.7 % in 12 h (2 MPa and 140 °C), good recyclability was also demonstrated (5 catalytic cycles).…”

Section: Base-free Catalytic Systemsmentioning

confidence: 99%

Current Advances in the Sustainable Conversion of 5‐Hydroxymethylfurfural into 2,5‐Furandicarboxylic Acid

et al. 2022

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2,5-Furandicarboxylic acid (FDCA) is currently considered one of the most relevant bio-sourced building blocks, representing a fully sustainable competitor for terephthalic acid as well as the main component in green polymers such as poly(ethylene 2,5furandicarboxylate) (PEF). The oxidation of biobased 5hydroxymethylfurfural (HMF) represents the most straightforward approach to obtain FDCA, thus attracting the attention of both academia and industries, as testified by Avantium with the creation of a new plant expected to produce 5000 tons per year. Several approaches allow the oxidation of HMF to FDCA. Metal-mediated homogeneous and heterogeneous catalysis, metal-free catalysis, electrochemical approaches, light-mediated procedures, as well as biocatalytic processes share the target to achieve FDCA in high yield and mild conditions. This Review aims to give an up-to-date overview of the current developments in the main synthetic pathways to obtain FDCA from HMF, with a specific focus on process sustainability.

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Section: Base-free Catalytic Systemsmentioning

confidence: 99%

Current Advances in the Sustainable Conversion of 5‐Hydroxymethylfurfural into 2,5‐Furandicarboxylic Acid

et al. 2022

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“…Finally, the bimetallic Au/Pd catalyst was loaded onto the carrier, thus leading to the formation of the Au x Pd y /NC system. [ 175 ] It is worth to note that any variation in the urea content affects the nitrogen doping and changing the amount of AuPd metal gives raise to different loadings. Bearing the NC support some base sites, the reaction can be conducted without any alkaline addition.…”

Section: Applications Of Halloysite Stabilized Pickering Emulsionsmentioning

confidence: 99%

“…Furthermore, regeneration test revealed that the obtained Au x Pd y /NC catalyst can be recovered and re‐used five times without significant loss of catalytic activity. [ 175 ] The green and environmentally friendly biomass conversion can be carried out starting, here again, from the preparation of Pickering emulsions to design a versatile and efficient nitrogen‐doped carbon supported base‐free bimetallic catalyst.…”

Section: Applications Of Halloysite Stabilized Pickering Emulsionsmentioning

confidence: 99%

Pickering Emulsions Stabilized by Halloysite Nanotubes: From General Aspects to Technological Applications

Lisuzzo

Cavallaro

Milioto

et al. 2022

Adv Materials Inter

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Besides surfactants, which decrease the interfacial tension between two immiscible liquids, also interfacially active particles can successfully stabilize an emulsion system by attaching at the liquid–liquid interface. The preparation of the resulting Pickering emulsions has been so far investigated starting from the study of the interactions arising between the dispersed droplets and the stabilizers, till the application of these systems in a wide range of different fields. This work is intended to provide an overall overview about the development of Pickering emulsions by considering the most general aspects and scanning the diverse types of solid stabilizers. Among them, Halloysite nanotubes play a major role as naturally derived clay with emulsifying capability owing to their cheap, abundant, green and biocompatible properties. Therefore, the design of Halloysite stabilized Pickering emulsions is the main content of this review, which will survey the role of nanotubes in providing colloidal stability and will comprehensively sum up the use of these particles in technological and industrial purposes: from environmental to catalytic, from health to cultural heritage related applications.

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“…[88] Guan et al synthesized bimetallic AuPd loaded on hierarchical porous nitrogendoped carbon (NC) (Au x Pd y /NC) through a series of chemical and physical methods such as Pickering high internal phase emulsions (Pickering HIPEs) template (Figure 8), which had certain catalytic activity for HMF selective oxidation. [57] When Au x Pd y /NC was used as the catalyst, the intermediate product in the selective oxidation of HMF was HMFCA. With the increase of Au/Pd ratio, the catalytic activity of Au x Pd y /NC increased, until the Au/Pd ratio of 1 had the maximum activity.…”

Section: Pd and Pd Alloysmentioning

confidence: 99%

Research Progress of Highly Efficient Noble Metal Catalysts for the Oxidation of 5‐Hydroxymethylfurfural

et al. 2022

ChemSusChem

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Pickering HIPEs derived hierarchical porous nitrogen-doped carbon supported bimetallic AuPd catalyst for base-free aerobic oxidation of HMF to FDCA in water

Cited by 34 publications

References 50 publications

Current Advances in the Sustainable Conversion of 5‐Hydroxymethylfurfural into 2,5‐Furandicarboxylic Acid

Current Advances in the Sustainable Conversion of 5‐Hydroxymethylfurfural into 2,5‐Furandicarboxylic Acid

Pickering Emulsions Stabilized by Halloysite Nanotubes: From General Aspects to Technological Applications

Research Progress of Highly Efficient Noble Metal Catalysts for the Oxidation of 5‐Hydroxymethylfurfural

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