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Journal of Shanghai University >

2020 , Vol. 26 >Issue 4: 552 - 561

DOI: https://doi.org/10.12066/j.issn.1007-2861.2064

Ru nanoparticles supported on Mg-Al mixed metal oxide catalysts for selective oxidation of HMF methylfurfural into FDCA

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  • 1. College of Sciences, Shanghai University, Shanghai 200444, China
    2. Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, China

Received date: 2018-04-17

  Online published: 2018-12-23

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Abstract

Ru nanoparticles supported on Mg-Al mixed metal oxide catalysts have been prepared via the hydrothermal-reduction method. The structure, morphology and composition of the catalysts have been systematically analyzed using X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), N2 physisorption, CO2-temperature programmed desorption（CO2-TPD) and inductively coupled plasma-optical emission spectroscopy (ICP-OES). The characterization results show that the highly dispersed Ru nanoparticles benefit from the strongest alkalinity (142.81 mmol·g-1 and the competitive specific surface area (97.0 m2·g-1 of mixed metal oxides with n(Mg):n(Al)=5:1. The RO-5 catalyst with Ru loading of 2.0% can efficiently catalyze aerobic oxidation of 5-hydroxymethylfurfural (HMF), obtaining 100.0% HMF conversion and 99.0% 2,5-furandicarboxylic acid (FDCA) yield under the optimal reaction condition (120 ℃ , 2 MPa O2, 5 h). According to the optimizing results, the reaction pathway for the conversion of HMF to FDCA is further confirmed for the formation of 2,5-diformylfuran,(DFF) and 5-formyl-2-furancarboxylic acid (FFCA) intermediates.

Key words： Mg-Al mixed oxide; Ru nanoparticles; oxidation; hydroxymethylfurfural; furandicarboxylic acid

Cite this article

WANG Lingchen, CHEN Chunlin, ZHANG Min . Ru nanoparticles supported on Mg-Al mixed metal oxide catalysts for selective oxidation of HMF methylfurfural into FDCA[J]. Journal of Shanghai University, 2020 , 26(4) : 552 -561 . DOI: 10.12066/j.issn.1007-2861.2064

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