Table 4. Acid site distribution results from NH3-TPD analysis.
| Catalysts | Acid sites distribution, n(NH3) (mmol) | |||||
|---|---|---|---|---|---|---|
| Weak | Medium | Strong | ||||
| (g−1) | (m−2) × 103 | (g−1) | (m−2) × 103 | (g−1) | (m−2) × 103 | |
| VCr-N600 | 0.2099 | 11.28 | 0.0211 | 1.134 | — | — |
| VCrP0.05-N600 | 0.1590 | 5.145 | 0.3727 | 12.06 | — | — |
| VCrP0.10-N600 | 0.0314 | 0.811 | 0.4492 | 11.61 | 0.0234 | 0.6046 |
| VCrP0.15-N600 | 0.1039 | 2.778 | 0.2227 | 5.954 | 0.5477 | 14.64 |