A New Type of Acidic OH-Groups in the LTL Zeolite
Abstract
:1. Introduction
2. Experimental
2.1. Materials
2.2. Characterisation
3. Results and Discussion
3.1. SEM-EDX
3.2. N2 Physisorption
3.3. XRD Analysis
3.4. FTIR
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample | Composition a | Crystallinity b, % | S, m2 g−1 | Vmicro c, cm3 g−1 |
---|---|---|---|---|
K-LTL | K8.8Al8.6Si27.4O72 | 92 | 346 | 0.12 |
NH4-K-LTL | (NH4)3.6K5.0Al8.6Si27.4O72 | 89 | 376 | 0.12 |
Li-NH4-K-LTL | Li0.6(NH4)2.8K5.2Al8.6Si27.4O72 | 90 | 385 | 0.13 |
Na-NH4-K-LTL | Na1.0(NH4)2.4K5.2Al8.6Si27.4O72 | 88 | 357 | 0.12 |
K-NH4-K-LTL | (NH4)0.8K7.8Al8.6Si27.4O72 | 87 | 332 | 0.12 |
Rb-NH4-K-LTL | Rb2.2(NH4)0.8K5.6Al8.5Si27.4O72 | 85 | 295 | 0.10 |
Cs-NH4-K-LTL | Cs3.1(NH4)0.6K4.8Al8.5Si27.4O72 | 84 | 266 | 0.09 |
NH4-Na-MAZ | (NH4)4.2Na4.2Al8.4Si27.6O72 | 81 | 105 | 0.02 |
Sample | BAS, µmol g−1 | LAS, µmol g−1 |
---|---|---|
NH4-MAZ | 113 | 89 |
K-LTL | 0 | 8 |
NH4-K-LTL | 486 | 204 |
Li-NH4-K-LTL-4 | 474 | 174 |
Na-NH4-K-LTL-4 | 469 | 118 |
K-NH4-K-LTL-4 | 312 | 45 |
Rb-NH4-K-LTL-4 | 289 | 34 |
Cs-NH4-K-LTL-4 | 229 | 71 |
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Contini, A.; Jendrlin, M.; Zholobenko, V. A New Type of Acidic OH-Groups in the LTL Zeolite. Crystals 2024, 14, 745. https://doi.org/10.3390/cryst14080745
Contini A, Jendrlin M, Zholobenko V. A New Type of Acidic OH-Groups in the LTL Zeolite. Crystals. 2024; 14(8):745. https://doi.org/10.3390/cryst14080745
Chicago/Turabian StyleContini, Alessandro, Martin Jendrlin, and Vladimir Zholobenko. 2024. "A New Type of Acidic OH-Groups in the LTL Zeolite" Crystals 14, no. 8: 745. https://doi.org/10.3390/cryst14080745