| 双功能TiSn-Beta分子筛限域的串联Lewis酸催化烯烃生成1,2-二醇 |
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| 引用本文： | 雷琦锋,王畅,戴卫理,武光军,关乃佳,Michael Hunger,李兰冬. 双功能TiSn-Beta分子筛限域的串联Lewis酸催化烯烃生成1,2-二醇[J]. 催化学报, 2021, 42(7): 1176-1184,中插46-中插49. DOI: 10.1016/S1872-2067(20)63734-2 |
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| 作者姓名： | 雷琦锋 王畅 戴卫理 武光军 关乃佳 Michael Hunger 李兰冬 |
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| 作者单位： | 南开大学材料科学与工程学院, 国家新材料研究院, 天津300350, 中国;南开大学材料科学与工程学院, 国家新材料研究院, 天津300350, 中国;南开大学材料科学与工程学院, 国家新材料研究院, 天津300350, 中国;南开大学材料科学与工程学院, 国家新材料研究院, 天津300350, 中国;南开大学材料科学与工程学院, 国家新材料研究院, 天津300350, 中国;南开大学先进能源材料化学教育部重点实验室, 化学化工协同创新中心, 天津300071, 中国;斯图加特大学化学技术研究所, 斯图加特70550, 德国;南开大学材料科学与工程学院, 国家新材料研究院, 天津300350, 中国;南开大学先进能源材料化学教育部重点实验室, 化学化工协同创新中心, 天津300071, 中国 |
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| 基金项目： | and the Fundamental Research Funds for the Central Universities.天津市自然科学基金;中央高校基本科研业务经费;This work was supported by Municipal Natural Science Foundation of Tianjin |
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| 摘 要： | 1,2-二醇主要由环氧化合物水合产生、广泛用于防冻剂,聚酯树脂和医药等化学品中间体的生产.研究表明,具有Lewis酸性的含锡沸石分子筛在环氧化物的水合反应中表现出优异的催化性能.环氧化合物是众所周知的碳亲电体之一,主要由烯烃环氧化生成.含Ti(IV)沸石,如Ti-Beta和TS-1,是烯烃环氧化反应的高效催化剂.串联催...
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| 关 键 词： | 串联催化剂 限域效应 分子筛 烯烃环氧化 环氧化合物水合 |
Tandem Lewis acid catalysis for the conversion of alkenes to 1,2-diols in the confined space of bifunctional TiSn-Beta zeolite |
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| Qifeng Lei,Chang Wang,Weili Dai,Guangjun Wu,Naijia Guan,Michael Hunger,Landong Li. Tandem Lewis acid catalysis for the conversion of alkenes to 1,2-diols in the confined space of bifunctional TiSn-Beta zeolite[J]. Chinese Journal of Catalysis, 2021, 42(7): 1176-1184,中插46-中插49. DOI: 10.1016/S1872-2067(20)63734-2 |
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| Authors: | Qifeng Lei Chang Wang Weili Dai Guangjun Wu Naijia Guan Michael Hunger Landong Li |
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| Affiliation: | (School of Materials Science and Engineering&National Institute for Advanced Materials,Nankai University,Tianjin 300350,China;Key Laboratory of Advanced Energy Materials Chemistry of the Ministry of Education,Collaborative Innovation Center of Chemical Science and Engineering,Nankai University,Tianjin 300071,China;Institute of Chemical Technology,University of Stuttgart,Stuttgart 70550,Germany) |
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| Abstract: | The generation of multifunctional isolated active sites in zeolite supports is an attractive method for integrating multistep sequential reactions into a single-pass tandem catalytic reaction. In this study, bifunctional TiSn-Beta zeolite was prepared by a simple and scalable post-synthesis approach, and it was utilized as an efficient heterogeneous catalyst for the tandem conversion of alkenes to 1,2-diols. The isolated Ti and Sn Lewis acid sites within the TiSn-Beta zeolite can efficiently inte-grate alkene epoxidation and epoxide hydration in tandem in a zeolite microreactor to achieve one-step conversion of alkenes to 1,2-diols with a high selectivity of >90％. Zeolite confinement effects result in high tandem rates of alkene epoxidation and epoxide hydration as well as high se-lectivity toward the desired product. Further, the novel method demonstrated herein can be em-ployed to other tandem catalytic reactions for sustainable chemical production. |
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| Keywords: | Tandem catalysis Confinement effect Zeolite Alkene epoxidation Epoxide hydration |
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