Investigation of the Crystallization Process of SAPO-35 and Si Distribution in the Crystals
文献类型：期刊论文
| 作者 | Tian, Peng1; Li, Bing1,2; Xu, Shutao1; Su, Xiong1,2; Wang, Dehua1,2; Zhang, Lin1; Fan, Dong1,2; Qi, Yue1; Liu, Zhongmin1 |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2013-02-28 |
| 卷号 | 117期号:8页码:4048-4056 |
| ISSN号 | 10.1021/jp311334q |
| 通讯作者 | 刘中民 |
| 产权排序 | 待补充 |
| 合作状况 | 英 |
| 英文摘要 | the hydrothermal crystallization of sapo-35 molecular sieve is examined in the present study. many characterization methods including xrd, sem, xrf, xps, eds, and various solid-state nmr techniques are applied to monitor the formation process of sapo-35 and the development of the local environments of si, p, and al atoms as a function of crystallization time. the results show that an intermediate phase with ordered structure and alpo compositions first forms. subsequently, sapo-35 crystallizes at the expense of the intermediate phase. si takes part in the formation of sapo-35 since the initial crystallization. the si concentration in sapo-35 shows an increasing trend with time, which leads to the change of both si and al coordination environments. more information is obtained from two-dimensional al-27 mq mas and al-27 -> p-31 mq-mas hetcor nmr. moreover, xps analysis reveals the enrichment of si on the crystal surface. on the basis of the characterization results, it is supposed that the distribution of si in the sapo-35 crystals is not uniform, showing a gradual increase from the core to the external surface. |
| 学科主题 | 物理化学 |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | solid-state nmr ; silicoaluminophosphate molecular-sieves ; microporous aluminophosphate alpo4-11 ; different framework topologies ; dry-gel conversion ; angle-spinning nmr ; inorganic solids ; spectroscopy ; zeolites ; kinetics |
| 资助信息 | 1，1 |
| 收录类别 | SCI |
| 原文出处 | 4056 |
| 语种 | 英语 |
| WOS记录号 | WOS:000318211800041 |
| 公开日期 | 2014-09-11 |
| 源URL | [http://159.226.238.44/handle/321008/119420]  |
| 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, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, 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 | Tian, Peng,Li, Bing,Xu, Shutao,et al. Investigation of the Crystallization Process of SAPO-35 and Si Distribution in the Crystals[J]. journal of physical chemistry c,2013,117(8):4048-4056. |
| APA | Tian, Peng.,Li, Bing.,Xu, Shutao.,Su, Xiong.,Wang, Dehua.,...&Liu, Zhongmin.(2013).Investigation of the Crystallization Process of SAPO-35 and Si Distribution in the Crystals.journal of physical chemistry c,117(8),4048-4056. |
| MLA | Tian, Peng,et al."Investigation of the Crystallization Process of SAPO-35 and Si Distribution in the Crystals".journal of physical chemistry c 117.8(2013):4048-4056. |
入库方式： OAI收割
来源：大连化学物理研究所
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