Table 4.
Davis et al. (2011) and Li Q. et al. (2019) experimental results about production of 2,5-furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF) in aqueous phase.
| Entry | Catalyst | Temperature (°C) | Time(h) | Yield (%) | Conversion (%) | Selectivity (%) |
|---|---|---|---|---|---|---|
| 1a | Pt/C | 22 | 6 | 79 | 100 | 79 |
| 2a | Pd/C | 22 | 6 | 71 | 100 | 71 |
| 3a | Au/C (WGC) | 22 | 6 | 8 | 100 | 8 |
| 4a | Au/C(sol) | 22 | 6 | 7 | 100 | 7 |
| 5a | Au/TiO2 | 22 | 6 | 8 | 100 | 8 |
| 6b | Au/C(sol) | 22 | 6 | 31 | 100 | 31 |
| 7b | Au/TiO2 | 22 | 6 | 32 | 100 | 32 |
| 8b | Au/C(sol) | 22 | 22 | 72 | 100 | 72 |
| 9b | Au/TiO2 | 22 | 22 | 80 | 100 | 80 |
| 10c | Au/CeO2-rod | 130 | 2.5 | 87.4 | 100 | 87.4 |
| 11c | Au/CeO2-cube | 130 | 2.5 | 19 | 100 | 19 |
| 12c | Au/CeO2-otc | 130 | 2.5 | 2 | 100 | 2 |
a
Reaction conditions: 0.15 M HMF solution in 0.3 M NaOH, metal:HMF = 6.67 × 10−3 mol/mol, P = 690 kPa O2.
b
Reaction conditions: 0.1 M HMF solution in 2.0 M NaOH, metal:HMF = 8.0 × 10−3 mol/mol, P = 2,000 kPa O2.
c
Reaction conditions: 2.5 h, 130°C, 0.5 MPa O2, molar ratio of NaOH/HMF = 4, molar ratio of HMF/Au = 400, 0.5 mmol HMF, 20 ml H2O.