Synthesis of SAPO-34 templated by diethylamine: Crystallization process and Si distribution in the crystals
文献类型：期刊论文
| 作者 | Liu, Guangyu1,2; Tian, Peng1; Zhang, Ying1,2; Li, Jinzhe1,2; Xu, Lei1; Meng, Shuanghe1; Liu, Zhongmin1 |
| 刊名 | microporous and mesoporous materials
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 114期号:1-3页码:416-423 |
| 关键词 | SAPO-34 diethylamine characterization crystallization mechanism Si distribution |
| 产权排序 | 1;1 |
| 通讯作者 | 刘中民 |
| 英文摘要 | the crystallization process of sapo-34 molecular sieve with si distribution in the crystals using diethylamine (dea) as the template was investigated by xrd, sem, ir, nmr, xrf, xps and eds techniques. it was found that the solution-mediated transport mechanism occurred during the crystallization, though the gel transformation cannot be completely excluded in the initial crystallization (t <= 1 h). si directly participated in the crystallization in the initial stage and incorporated into the framework of sapo-34 by sm2 (p substitution by si) and sm3 (pairs of al and p substitution by 2si) mechanisms. xps analysis revealed the enrichment of si on the surface of crystals. based on the experimental results, a model of si distribution in the crystals was proposed, which described a non-uniform distribution of si in the crystals, with the increasing content from the core to the surface. (c) 2008 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | methanol-to-hydrocarbons ; molecular-sieves ; silicon incorporation ; olefin conversion ; light olefins ; nmr ; mechanisms ; morpholine ; stability ; zeolites |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000258432100042 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/100631]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Appl Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Guangyu,Tian, Peng,Zhang, Ying,et al. Synthesis of SAPO-34 templated by diethylamine: Crystallization process and Si distribution in the crystals[J]. microporous and mesoporous materials,2008,114(1-3):416-423. |
| APA | Liu, Guangyu.,Tian, Peng.,Zhang, Ying.,Li, Jinzhe.,Xu, Lei.,...&Liu, Zhongmin.(2008).Synthesis of SAPO-34 templated by diethylamine: Crystallization process and Si distribution in the crystals.microporous and mesoporous materials,114(1-3),416-423. |
| MLA | Liu, Guangyu,et al."Synthesis of SAPO-34 templated by diethylamine: Crystallization process and Si distribution in the crystals".microporous and mesoporous materials 114.1-3(2008):416-423. |
入库方式： OAI收割
来源：大连化学物理研究所
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