Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Highly efficient aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over halloysite nanotubes-templated nitrogen-doped carbon supported bimetallic AuPd catalyst
Abstract Aerobic oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2, 5-furandicarboxylic acid (FDCA) is an important way to produce bioplastic monomer. Herein, halloysite nanotubes (HNT)-templated layered porous hollow rod-shaped nitrogen-doped carbon supported bimetallic AuPd catalysts (AumPdn/HRNxC) with different nitrogen contents and bimetallic nanoparticles size were employed for the highly efficient aerobic oxidation of HMF to FDCA in sodium carbonate aqueous solution. Catalytic experimental results uncovered the possible reaction pathway, and the kinetics study further confirmed the oxidation of intermediate FFCA to FDCA was the rate-controlled step. Benefiting from the synergy between nitrogen-doped carbon support and bimetallic nanoparticles, the Au3Pd1/HRN5C catalyst obtained the highest HMF conversion of 100% and FDCA yield of 99.9% under the optimal reaction conditions. In-situ FT-IR study revealed the adsorption configuration of HMF, and the ESR test proved that the active substance was superoxide radical. Furthermore, the catalyst showed good stability and reusability. This work provides an efficient, economical and environmentally friendly raw clay mineral derived heterogeneous catalyst for the large-scale production of FDCA from HMF.
Graphical Abstract Display Omitted
Highlights HNT-templated efficient hollow rod-shaped N-doped carbon-supported AuPd catalyst was designed. N-doping facilitated the dispersion of metal particles and catalytic activity. The highest 99.9% of FDCA yield was obtained over Au3Pd1/HRN5C catalyst.
Highly efficient aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over halloysite nanotubes-templated nitrogen-doped carbon supported bimetallic AuPd catalyst
Abstract Aerobic oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2, 5-furandicarboxylic acid (FDCA) is an important way to produce bioplastic monomer. Herein, halloysite nanotubes (HNT)-templated layered porous hollow rod-shaped nitrogen-doped carbon supported bimetallic AuPd catalysts (AumPdn/HRNxC) with different nitrogen contents and bimetallic nanoparticles size were employed for the highly efficient aerobic oxidation of HMF to FDCA in sodium carbonate aqueous solution. Catalytic experimental results uncovered the possible reaction pathway, and the kinetics study further confirmed the oxidation of intermediate FFCA to FDCA was the rate-controlled step. Benefiting from the synergy between nitrogen-doped carbon support and bimetallic nanoparticles, the Au3Pd1/HRN5C catalyst obtained the highest HMF conversion of 100% and FDCA yield of 99.9% under the optimal reaction conditions. In-situ FT-IR study revealed the adsorption configuration of HMF, and the ESR test proved that the active substance was superoxide radical. Furthermore, the catalyst showed good stability and reusability. This work provides an efficient, economical and environmentally friendly raw clay mineral derived heterogeneous catalyst for the large-scale production of FDCA from HMF.
Graphical Abstract Display Omitted
Highlights HNT-templated efficient hollow rod-shaped N-doped carbon-supported AuPd catalyst was designed. N-doping facilitated the dispersion of metal particles and catalytic activity. The highest 99.9% of FDCA yield was obtained over Au3Pd1/HRN5C catalyst.
Highly efficient aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over halloysite nanotubes-templated nitrogen-doped carbon supported bimetallic AuPd catalyst
Wang, Fang (Autor:in) / Yan, Changhao (Autor:in) / Jiang, Rui (Autor:in) / Chen, Yao (Autor:in) / Wei, Yanan (Autor:in) / Cao, Yu (Autor:in) / Guan, Wen (Autor:in) / Huo, Pengwei (Autor:in) / Zhang, Yunlei (Autor:in)
Applied Clay Science ; 235
16.02.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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