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Catalytic Conversion of Glucose to 5-Hydroxymethyfurfural Over B2O3 Supported Solid Acids Catalysts
- Han, Bin, Zhao, Peng, He, Rong, Wu, Tinghua, Wu, Ying
- Waste and biomass valorization 2018 v.9 no.11 pp. 2181-2190
- Bronsted acids, Fourier transform infrared spectroscopy, Lewis acids, X-ray diffraction, X-ray photoelectron spectroscopy, adsorption, catalysts, catalytic activity, glucose, hydroxymethylfurfural, nitrogen, pyridines
- A series of supported B₂O₃/ZrO₂–Al₂O₃ (BZA) catalysts with different loading B₂O₃ were prepared and characterized by XRD, FT-IR, XPS, NH₃-TPD, N₂ adsorption–desorption and FT-IR (pyridine adsorption). These catalysts were applied for direct conversion of glucose to 5-hydroxymethylfurfural (HMF). An optimized HMF yield of 41.2% at a glucose conversion of 90.8% was obtained within 4 h at 150 °C over B₂O₃ (20 wt%)/ZrO₂–Al₂O₃ (BZA-0.20). The best catalytic performance of BZA-0.20 was associated with the highest amount of total acid. The simultaneously bearing Lewis acid and Brønsted acid sites were more efficient for production of HMF from glucose.