Epoxides hydration on Co-III(salen)-OTs encapsulated in silica nanocages modified with prehydrolyzed TMOS
文献类型：期刊论文
| 作者 | Zhong, Mingmei1,2; Zhao, Yaopeng2; Yang, Qihua2; Li, Can2 |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 338页码:184-191 |
| 关键词 | Co-iii(Salen)-ots Hydration Nanocages Deactivation Of Co-iii(Salen)-ots Tmos |
| ISSN号 | 0021-9517 |
| DOI | 10.1016/j.jcat.2016.03.006 |
| 文献子类 | Article |
| 英文摘要 | The silylation for reducing the pore entrance size is crucial for the success encapsulation of molecular catalysts. Herein, we reported the preparation of an efficient solid catalyst for epoxide hydration via encapsulation of Co-III(salen)-OTs in the nanocages of FDU-12 using prehydrolyzed tetramethylorthosilicate (TMOS) as silylation reagent under mild condition. Co-III(salen)-OTs in nanocages could afford TOF of 2760 h(-1) in the hydration of propylene epoxide (PO), which is the highest ever reported at low PO/H2O molar ratio. Comparison of the activity of Co-III(salen)-OTs accommodated in nanocages with different microenvironments suggests that Co-III(salen)-OTs in hydrophilic microenvironment was more active than that in hydrophobic microenvironment in the hydration of propylene epoxide. Moreover, studies show that the deactivation rate of Co-III(salen)-OAc is lower than that of Co-III(salen)-OTs in nanocages due to the confinement effect of the nanoreactor. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | HYDROLYTIC KINETIC RESOLUTION ; ETHYLENE-OXIDE ; CATALYTIC HYDRATION ; TERMINAL EPOXIDES ; EPICHLOROHYDRIN ; NANOREACTORS ; REACTIVITY ; COMPOSITE ; MECHANISM ; STRATEGY |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000376695500019 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170574]  |
| 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 |
| 通讯作者 | Yang, Qihua; Li, Can |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Mingmei,Zhao, Yaopeng,Yang, Qihua,et al. Epoxides hydration on Co-III(salen)-OTs encapsulated in silica nanocages modified with prehydrolyzed TMOS[J]. JOURNAL OF CATALYSIS,2016,338:184-191. |
| APA | Zhong, Mingmei,Zhao, Yaopeng,Yang, Qihua,&Li, Can.(2016).Epoxides hydration on Co-III(salen)-OTs encapsulated in silica nanocages modified with prehydrolyzed TMOS.JOURNAL OF CATALYSIS,338,184-191. |
| MLA | Zhong, Mingmei,et al."Epoxides hydration on Co-III(salen)-OTs encapsulated in silica nanocages modified with prehydrolyzed TMOS".JOURNAL OF CATALYSIS 338(2016):184-191. |
入库方式： OAI收割
来源：大连化学物理研究所
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