Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Titanate nanotube-promoted chemical fixation of carbon dioxide to cyclic carbonate: a combined experimental and computational study | |
Chen, Aibing1; Zhao, Tiancong1,2; Gao, Hui2; Chen, Limin3; Chen, Jinzhu2 ; Yua, Yifeng1
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| 2016 | |
| Source Publication | CATALYSIS SCIENCE & TECHNOLOGY
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| Volume | 6Issue:3Pages:780-790 |
| Abstract | Titanate nanotubes (TNT) were found to be air-and water-tolerant, efficient, and recyclable Lewis acid catalysts towards the cycloaddition of carbon dioxide (CO2) to propylene oxide (PO) for the synthesis of cyclic propylene carbonate (PC). Using TNT as the catalyst and potassium iodide, tetrabutylammonium bromide or tetraphenylphosphonium bromide as the co-catalyst, PO was readily converted to PC with a yield of up to >99.9% and a PC selectivity of 100% under relatively mild conditions. Experimental research revealed that the TNT catalyst with the highest exposure of active sites, including surface hydroxyl groups and Lewis acid sites, proved to be the most active for the cycloaddition reaction. Our theoretical evaluation based on density functional theory calculations further indicated that the high Lewis acidity of TNT strongly reduces the energy barrier for the ring-opening step through the polarization of the C-O bond of PO, which allows a subsequent nucleophilic attack easily. Both experimental and computational studies demonstrated that the synergetic effect between TNT and the co-catalyst plays an important role in PC formation. The TNT catalyst is richer in surface Lewis acid sites, shows a large surface area and mesoporous structure, and has a heterogeneous and recyclable nature, which makes TNT an excellent, interesting and ideal catalyst for chemical fixation of CO2. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1039/c5cy01024a |
| WOS Subject Extended | Chemistry |
| WOS Keyword | FUNCTIONALIZED IONIC LIQUID ; HIGHLY EFFICIENT CATALYST ; PROPYLENE-OXIDE ; PHOTOCATALYTIC ACTIVITY ; CALCINATION TEMPERATURE ; CHROMIUM PORPHYRIN ; ORGANIC CARBONATES ; BASE CATALYSTS ; CO2 ; EPOXIDES |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000369533400022 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/11011 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, Shijiazhuang 050018, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.S China Univ Technol, Sch Environm & Energy, Guangzhou Higher Educ Mega Ctr, Guangzhou 510006, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Aibing,Zhao, Tiancong,Gao, Hui,et al. Titanate nanotube-promoted chemical fixation of carbon dioxide to cyclic carbonate: a combined experimental and computational study[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(3):780-790. |
| APA | Chen, Aibing,Zhao, Tiancong,Gao, Hui,Chen, Limin,Chen, Jinzhu,&Yua, Yifeng.(2016).Titanate nanotube-promoted chemical fixation of carbon dioxide to cyclic carbonate: a combined experimental and computational study.CATALYSIS SCIENCE & TECHNOLOGY,6(3),780-790. |
| MLA | Chen, Aibing,et al."Titanate nanotube-promoted chemical fixation of carbon dioxide to cyclic carbonate: a combined experimental and computational study".CATALYSIS SCIENCE & TECHNOLOGY 6.3(2016):780-790. |
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