| SAPO-11分子筛模板剂理论筛选及改进合成 |
| Theoretical Template Selection and Improved Synthesis of SAPO-11 |
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| 摘要: 本文通过能学计算,表明二乙胺比二丙胺更有利于合成出高Si含量的SAPO-11分子筛。以二乙胺作模板剂、较高温度水热条件下合成出不同Si/Al比的SAPO-11样品。Si/Al比升高,结晶度下降,晶粒变小。 29Si NMR谱表明Si/Al比为0.33的SAPO-11的SAPO区明显扩大。 |
| 关键词: 分子筛 能学计算 SAPO区 Si区 |
| 基金项目: |
| Abstract: By energetic analysis it shows that diethylamine is more suitable to be the template than dipropylamine in synthesizing higher Si-contented SAPO-11. Serial SAPO-11 samples with different Si/Al ratios are synthesized with diethylamine as template at high temperature. With the Si/Al ratio increases, crystalline and SAPO-11 size de-crease. 29Si NMR spectra show SAPO-11 sample with Si/Al 0.33 enhances the neighboring region between SAPO region and Si region significantly. |
| Keywords: molecular sieve energetic calculation SAPO region Si region |
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| 摘要点击次数: 1322 |
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| 王利军,黄茜丹,赵伟,李全芝.SAPO-11分子筛模板剂理论筛选及改进合成[J].无机化学学报,2002,18(6):559-562. |
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