Synthesis of large silicon substituted AlPO4-11 single crystals
| Autor: | Zikang Tang, J.M. Hu, S.C. Ruan, Jian Pang Zhai, I.L. Li, Ling Fu |
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| Rok vydání: | 2011 |
| Předmět: |
Diffraction
Silicon Cell volume chemistry.chemical_element Mineralogy General Chemistry Condensed Matter Physics law.invention chemistry.chemical_compound Crystallography Lattice constant chemistry Mechanics of Materials law Molar ratio Hydrothermal synthesis General Materials Science Dipropylamine Crystallization |
| Zdroj: | Microporous and Mesoporous Materials. 137:1-7 |
| ISSN: | 1387-1811 |
| DOI: | 10.1016/j.micromeso.2010.08.014 |
| Popis: | We report the effects of gel composition and crystallization conditions on the hydrothermal synthesis of large silicon substituted AlPO4-11 single crystals (SAPO-11). Perfect large SAPO-11 single crystals with a typical dimension of 40 × 80 × 180 μm3 were synthesized by optimizing the following synthesis conditions: crystallization temperature and duration, molar ratio SiO2/Al2O3, amount of the organic template dipropylamine (DPA) and HF. Single-crystal X-ray diffraction measurement showed that the as-synthesized SAPO-11 single crystals are of space group Icm2 symmetry with lattice constants a = 13.384 A, b = 18.60 A and c = 8.414 A, and their unit cell volume is V = 2094 A3. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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