Abstract
Catalytic oxidation of 5-Hydroxymethylfurfural (HMF) feedstock to value-added chemical 2,5-diformylfuran (DFF) is of great importance in biomass valorization. However, it is still challenging to develop non-noble metal-based catalysts for high selectivity of DFF due to the coexistence of other undesired derivatives. In this study, MnxMg1-xSnO3 was prepared by Mn incorporating into the crystalline lattice of MgSnO3, triggering synergetic catalysis for selective aerobic oxidation of HMF to DFF. Among polymetallic oxides with varying Mn-Mg molar ratios, Mn0.67Mg0.33SnO3 (Mn/Mg ratio = 2:1) exhibited the best catalytic activity with DFF yield of 80.6 % and selectivity of 87.5 % at 160 °C for 6 h. It is revealed by various characterization analysis that Mn species in Mn0.67Mg0.33SnO3 could not only act as active sites directly but also promote the transformation of oxygen into singlet oxygen for HMF oxidation. Furthermore, the used Mn0.67Mg0.33SnO3 catalyst could be successfully reactivated through a straightforward two-step regeneration method involving impregnation followed by calcination, demonstrating remarkable stability.
Original language | English |
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Article number | 133524 |
Number of pages | 11 |
Journal | Fuel |
Volume | 381, Part B |
DOIs | |
Publication status | Published - 1 Feb 2025 |
Scopus Subject Areas
- General Chemical Engineering
- Fuel Technology
- Energy Engineering and Power Technology
- Organic Chemistry
User-Defined Keywords
- 2,5-Diformylfuran
- 5-Hydroxymethylfurfural
- Catalyst
- Metal oxides
- Selective Oxidation