Results of catalytic performance evaluation of catalysta.
| Sample | Acid density (mmol g−1) | Cyclohexene conversion (%) | Cyclohexylformate selective (%) | Literature |
|---|---|---|---|---|
| MIL-101 | — | 5.30 | 67.15 | This work |
| MIL-101-SO3HHCl | 0.82 | 63.97 | 97.61 | This work |
| MIL-101-SO3HHF | 0.73 | 38.40 | 97.34 | This work |
| MIL-101-SO3HNaAc | 0.76 | 32.46 | 97.71 | This work |
| SBA-15-SO3H | 0.23 | 54.40 | 95.80 | 19 and 20 |
| PSCSAb | 0.81c | 87.80 | 97.40 | 10 |
| HZMS-5b | 1.70 | 77.60 | 97.00 | 12 |
| Nafion NR50b | 0.51 | 68.20 | 98.50 | 19 |
| Amberlyst-15 | 4.60 | 91.50 | 98.10 | 18 |
a
Reaction conditions: cyclohexene = 4.11 g, n(cyclohexene) : n(HCOOH) = 1 : 3, m(catalyst) = 0.55 g, 80 °C, 6 h. Acid densities were calculated by elemental analysis and XPS.
b
Reaction was conducted into the autoclave at 413 K.
c
Based on S content by elemental analysis.