Direct Detection of Supramolecular Reaction Centers in the Methanolto- Olefins Conversion over Zeolite H-ZSM-5 by C-13-Al-27 Solid-State NMR Spectroscopy
文献类型：期刊论文
| 作者 | Wang, Chao; Wang, Qiang; Xu, Jun; Qi, Guodong; Gao, Pan; Wang, Weiyu; Zou, Yunyun; Feng, Ningdong; Liu, Xiaolong; Deng, Feng |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2016-02-12 |
| 卷号 | 55期号:7页码:2507-2511 |
| 关键词 | host-guest interactions hydrocarbon pool methanol conversion NMR spectroscopy zeolites |
| 英文摘要 | Hydrocarbon-pool chemistry is important in methanol to olefins (MTO) conversion on acidic zeolite catalysts. The hydrocarbon-pool (HP) species, such as methylbenzenes and cyclic carbocations, confined in zeolite channels during the reaction are essential in determining the reaction pathway. Herein, we experimentally demonstrate the formation of supramolecular reaction centers composed of organic hydrocarbon species and the inorganic zeolite framework in HZSM- 5 zeolite by advanced 13C-27Al double-resonance solidstate NMR spectroscopy. Methylbenzenes and cyclic carbocations located near Bronsted acid/ base sites form the supramolecular reaction centers in the zeolite channel. The internuclear spatial interaction/ proximity between the 13C nuclei (associated with HP species) and the 27Al nuclei (associated with Bronsted acid/ base sites) determines the reactivity of the HP species. The closer the HP species are to the zeolite framework Al, the higher their reactivity in the MTO reaction. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | HYDROCARBON-POOL ; PRODUCT SELECTIVITY ; TO-HYDROCARBONS ; CATALYSIS ; HSAPO-34 ; MECHANISM ; HZSM-5 ; ETHENE ; ION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369970500038 |
| 公开日期 | 2016-04-26 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/9193]  |
| 专题 | 武汉物理与数学研究所_磁共振应用研究部 |
| 作者单位 | Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Natl Ctr Magnet Resonance Wuhan, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chao,Wang, Qiang,Xu, Jun,et al. Direct Detection of Supramolecular Reaction Centers in the Methanolto- Olefins Conversion over Zeolite H-ZSM-5 by C-13-Al-27 Solid-State NMR Spectroscopy[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2016,55(7):2507-2511. |
| APA | Wang, Chao.,Wang, Qiang.,Xu, Jun.,Qi, Guodong.,Gao, Pan.,...&Deng, Feng.(2016).Direct Detection of Supramolecular Reaction Centers in the Methanolto- Olefins Conversion over Zeolite H-ZSM-5 by C-13-Al-27 Solid-State NMR Spectroscopy.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,55(7),2507-2511. |
| MLA | Wang, Chao,et al."Direct Detection of Supramolecular Reaction Centers in the Methanolto- Olefins Conversion over Zeolite H-ZSM-5 by C-13-Al-27 Solid-State NMR Spectroscopy".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55.7(2016):2507-2511. |
入库方式： OAI收割
来源：武汉物理与数学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。