Cavity Controls the Selectivity: Insights of Confinement Effects on MTO Reaction
文献类型：期刊论文
| 作者 | Li, Jinzhe1; Wei, Yingxu1; Chen, Jingrun1,3; Xu, Shutao1; Tian, Peng1; Yang, Xiaofeng2; Li, Bing1; Wang, Jinbang1,3; Liu, Zhongmin1,2 |
| 刊名 | acs catalysis
 |
| 出版日期 | 2015-02-01 |
| 卷号 | 5期号:2页码:661-665 |
| 关键词 | MTO Cl chemistry shape selectivity confinement effects selectivity control |
| 英文摘要 | organic reaction intermediates confined in zeolite cavities are very important for product formation during methanol-to-olefins (mto) conversion; however, direct evidence is still required to understand the particular function of these intermediates. herein, for the first time, by careful selection of sapo molecular sieves with different cavity size but identical 8mr pore openings, the reactivity and role of these intermediates played in olefin generation are verified by isotopic tracing method and theoretical calculations based on the observation of two types of carbenium intermediates, polymb(+) and polymcp(+), under the real mto reaction conditions. it demonstrates that cavity size controls the molecular size and reactivity of these confined species, which results in different mto activity and product selectivity. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | methanol-to-hydrocarbons ; acidic zeolite catalysts ; state nmr-spectroscopy ; reaction-mechanism ; shape-selectivity ; heptamethylbenzenium cation ; olefins conversion ; sapo-34 catalyst ; pool chemistry ; carbenium ions |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349275300021 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145970]  |
| 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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jinzhe,Wei, Yingxu,Chen, Jingrun,et al. Cavity Controls the Selectivity: Insights of Confinement Effects on MTO Reaction[J]. acs catalysis,2015,5(2):661-665. |
| APA | Li, Jinzhe.,Wei, Yingxu.,Chen, Jingrun.,Xu, Shutao.,Tian, Peng.,...&Liu, Zhongmin.(2015).Cavity Controls the Selectivity: Insights of Confinement Effects on MTO Reaction.acs catalysis,5(2),661-665. |
| MLA | Li, Jinzhe,et al."Cavity Controls the Selectivity: Insights of Confinement Effects on MTO Reaction".acs catalysis 5.2(2015):661-665. |
入库方式： OAI收割
来源：大连化学物理研究所
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