| Preparation, characterization and catalytic performance study of La-TS-1 catalysts | |
| Department | OSSO国家重点实验室 |
Wu M(吴妹)1,2; Song HL(宋焕玲)1 ; Chou LJ(丑凌军)1; Song HL(宋焕玲); Chou LJ(丑凌军)
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| 2013 | |
| Source Publication | RSC Advances
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| ISSN | 2046-2069 |
| Volume | 3Issue:45Pages:23562-23570 |
| Abstract | Lanthanum (La) was substituted into a titanium silicalite 1 (TS-1) framework via two different synthetic approaches, i.e., in situ hydrothermal synthesis and ultrasonic immersing methods. La inhibited Ti to enter into the TS-1 framework during in situ hydrothermal synthesis, and thus Ti erosion gave rise to poor catalytic activity for butadiene (BD) epoxidation. While catalysts prepared by an ultrasonic immersing method were testified as fine ones by mutually complementary characterization and catalytic tests. Extraframework-La and Si–OH caused by framework-La enhanced the acidity of TS-1. Adequate intensity of acidity aroused from 8 wt% La modified had activated H2O2 for BD epoxidation rather than promoting the solvolysis reactions of the epoxide. Moreover, interactions between framework-La and the Ti active center via O weakened the [Ti–O] bond, which facilitated active intermediate formation. As a result, H2O2 conversion and utilization, along with vinyloxirane (VO) yield and TON were highly promoted with appropriate content of La modified. |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1039/c3ra43035a |
| Funding Organization | the National Nature Science Foundation of China (no. 21133011);the National Basic Research Program (no. 2011CB201404) of PR China |
| Indexed By | SCI |
| If | 3.708 |
| 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/362003/4419 |
| 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,Chou LJ,et al. Preparation, characterization and catalytic performance study of La-TS-1 catalysts[J]. RSC Advances,2013,3(45):23562-23570. |
| APA | Wu M,Song HL,Chou LJ,宋焕玲,&丑凌军.(2013).Preparation, characterization and catalytic performance study of La-TS-1 catalysts.RSC Advances,3(45),23562-23570. |
| MLA | Wu M,et al."Preparation, characterization and catalytic performance study of La-TS-1 catalysts".RSC Advances 3.45(2013):23562-23570. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Wu-2013-Preparation,（1590KB） | 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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