| The positive role of cadmium in TS-1 catalyst for butadiene epoxidation | |
| Department | OSSO国家重点实验室 |
Wu M(吴妹)1,2; Song HL(宋焕玲)1 ; Wang F(王芳)1; Chou LJ(丑凌军)1; Song HL(宋焕玲); Chou LJ(丑凌军)
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| 2013 | |
| Source Publication | Journal of Molecular Catalysis A: Chemical
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| ISSN | 1381-1169 |
| Volume | 379Pages:207-212 |
| Abstract | A series of Cd modified titanium silicalite 1 catalysts with different Cd content (xCd-TS-1, x = 1–15) we resuccessfully prepared by ultrasound impregnation. Epoxidation of butadiene over these catalysts were investigated using hydrogen peroxide as oxidant, which indicated that Cd greatly improve the catalytic performance of TS-1 and the selectivity of epoxide. Various characterization methods including quantum chemical calculation were employed to explore the specific roles of Cd in promoting TS-1 catalytic activity. Theoretical calculation consistently suggested Ti-O bond were weakened owing to the introduction of Cd, which resulted in the structure of Cd-TS-1 becoming more relaxant. As a consequence, it is favorable to methanol solvent and H2O2 interacting with the Ti active site to form five-member transition state during reaction. It was observed that catalysts modified with 1–5 wt% Cd presented both high catalytic activity and good reusability. The highest yield of 0.63 mol/L of vinyloxirane (VO) was obtained, while turnover number (TON, determined as the molar VO obtained per molar Ti atom) could reach to 1466. |
| Keyword | Cadmium Epoxidation Quantum Chemical Calculation Titanium Silicalite 1 Vinyloxirane |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1016/j.molcata.2013.08.019 |
| Funding Organization | the National Natural Science of China (Grant No. 21133011;21203218) |
| Indexed By | SCI |
| If | 3.679 |
| Language | 英语 |
| Funding Project | 多相选择氧化课题组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4420 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Song HL(宋焕玲); Chou LJ(丑凌军) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wu M,Song HL,Wang F,et al. The positive role of cadmium in TS-1 catalyst for butadiene epoxidation[J]. Journal of Molecular Catalysis A: Chemical,2013,379:207-212. |
| APA | Wu M,Song HL,Wang F,Chou LJ,宋焕玲,&丑凌军.(2013).The positive role of cadmium in TS-1 catalyst for butadiene epoxidation.Journal of Molecular Catalysis A: Chemical,379,207-212. |
| MLA | Wu M,et al."The positive role of cadmium in TS-1 catalyst for butadiene epoxidation".Journal of Molecular Catalysis A: Chemical 379(2013):207-212. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Wu-2013-The positive（1675KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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