Knowledge Management System Of Institute of process engineering,CAS
| Ionic liquids with multiple active sites supported by SBA-15 for catalyzing conversion of CO2 into cyclic carbonates | |
| Shi, Zijie1,2; Su, Qian1; Ying, Ting1; Tan, Xin1,2; Deng, Lili1,2; Dong, Li1; Cheng, Weiguo1 | |
| 2020-07-01 | |
| Source Publication | JOURNAL OF CO2 UTILIZATION
 |
| ISSN | 2212-9820 |
| Volume | 39Pages:7 |
| Abstract | Synthesis of cyclic carbonates via cycloaddition reaction by means of CO2 and epoxides has been thought as an effective method for relieving global warming together with resource shortage. In order to elevate the utilization ratio of ionic liquids and separate catalysts easily after reaction, multi-site ionic liquids were designed and then immobilized on SBA-15 for the conversion of CO2 into cyclic carbonates. By combining the advantages of multiple sites and mesoporous channel, in this work, a certain amount of ionic liquids with multiple active sites were firmly immobilized on modified SBA-15. Among all the immobilized ionic liquids, [IMCA](2)Br-2@SBA-15 presented the best catalytic activity. The result showed high yield (97.4 %) and almost 100 % selectivity of propylene carbonate, which was close to equivalent molar bulk ionic liquids. This superiority could be attributed to the sufficient dispersion of multiple active sites of ionic liquids after being immobilized, enabling efficient use of ionic liquids. Furthermore, the catalyst showed good recyclability after five cycles. By characterization and DFT calculation, the synergistically catalytic mechanism based on multiple sites was proposed. |
| Keyword | Cycloaddition reaction Multiple active sites SBA-15 |
| DOI | 10.1016/j.jcou.2020.101162 |
| Language | 英语 |
| WOS Keyword | PERIODIC MESOPOROUS ORGANOSILICA ; HETEROGENEOUS CATALYST ; CAPTURE ; SILICA ; FIXATION ; DIOXIDE ; IMMOBILIZATION ; FRAMEWORK ; EFFICIENT ; EPOXIDES |
| Funding Project | Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A01] ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21030500] ; National Natural Science Foundation of China[21890763] ; National Natural Science Foundation of China[21908226] |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Multidisciplinary ; Engineering, Chemical |
| Funding Organization | Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China |
| WOS ID | WOS:000546645100004 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/41380 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Cheng, Weiguo |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst,CAS Key Lab, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Shi, Zijie,Su, Qian,Ying, Ting,et al. Ionic liquids with multiple active sites supported by SBA-15 for catalyzing conversion of CO2 into cyclic carbonates[J]. JOURNAL OF CO2 UTILIZATION,2020,39:7. |
| APA | Shi, Zijie.,Su, Qian.,Ying, Ting.,Tan, Xin.,Deng, Lili.,...&Cheng, Weiguo.(2020).Ionic liquids with multiple active sites supported by SBA-15 for catalyzing conversion of CO2 into cyclic carbonates.JOURNAL OF CO2 UTILIZATION,39,7. |
| MLA | Shi, Zijie,et al."Ionic liquids with multiple active sites supported by SBA-15 for catalyzing conversion of CO2 into cyclic carbonates".JOURNAL OF CO2 UTILIZATION 39(2020):7. |
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