Research Article
Preparation of Mesoporous SiO2-Pillared Lamellar Titanoniobate Catalysts for Bioethanol Dehydration
Table 4
Quantitative analysis and deconvolution of NH3-TPD profiles.
| | Sample | Acid strength | (°C) | Density of acid sites (mmol g−1) | | Partial | Total |
| | HTN | Weak | 233 | 0.51 (13%) |
3.85 | | Moderate | 291 | 0.94 (24%) | | Strong | 407 | 2.02 (53%) | | 549 | 0.38 (10%) |
| | SiO2TN | Weak | 217 | 0.98 (23%) |
4.41 | | Moderate | 308 | 1.79 (40%) | | Strong | 457 | 0.92 (21%) | | 661 | 0.72 (16%) |
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