The positive role of cadmium in TS-1 catalyst for butadiene epoxidation
文献类型：期刊论文
| 作者 | 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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| 刊名 | Journal of Molecular Catalysis A: Chemical
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| 出版日期 | 2013 |
| 卷号 | 379页码:207-212 |
| 关键词 | Cadmium Epoxidation Quantum chemical calculation Titanium silicalite 1 Vinyloxirane |
| ISSN号 | 1381-1169 |
| 通讯作者 | 宋焕玲 ; 丑凌军 |
| 英文摘要 | 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. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science of China (Grant No. 21133011;21203218) |
| 语种 | 英语 |
| WOS记录号 | WOS:000326772700028 |
| 公开日期 | 2013-12-04 |
| 源URL | [http://210.77.64.217/handle/362003/4420]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 通讯作者 | Song HL(宋焕玲); Chou LJ(丑凌军) |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：兰州化学物理研究所
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