Synthesis of 3D Large-Pore Germanosilicate Zeolites Using Imidazolium-Based Long Dications
文献类型：期刊论文
| 作者 | Lu, Peng1,2,3,6; Mayoral, Alvaro4; Gomez-Hortiguela, Luis5; Zhang, Yaping4; Camblor, Miguel A.1 |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2019-08-13 |
| 卷号 | 31期号:15页码:5484-5493 |
| ISSN号 | 0897-4756 |
| DOI | 10.1021/acs.chemmater.9b00959 |
| 通讯作者 | Camblor, Miguel A.(macamblor@icmm.csic.es) |
| 英文摘要 | Introduction of small molar fractions of Ge in a synthesis system otherwise yielding the monodimensional large-pore zeolite MTW produced three 3D large-pore materials as the Ge fraction increased: *BEA, HPM-8, and HPM-7. HPM-8 is a zeolite consisting of an intergrowth of polymorphs D and E of the zeolite Beta family with a large predominance (>80%) of polymorph D, according to DIFFaX simulations and high-resolution scanning transmission electron microscopy analysis. After calcination, HPM-8 becomes remarkably stable upon contact with ambient air. HPM-7 likely possesses the POS topology, which is related to polymorph C. The density of double 4-ring (D4R) units in the crystallized materials increases from *BEA to HPM-8 to HPM-7, that is, as the Ge fraction increases. Interestingly, molecular mechanics show that in both HPM-7 and HPM-8, the organic dications prefer to site with their imidazolium rings in close contact with the D4R units as a consequence of a stronger confinement in this position. Indeed, the structure-directing role of these long dications can be explained as a consequence of the appropriate distance match between adjacent D4R units in both zeolite frameworks (and hence the negative charges associated with the occluded fluoride) and the imidazolium rings of these organic dications (and hence the positive charges), which is dictated by the length of the alkyl spacers, thus driving the crystallization pathway toward these particular germanosilicate zeolites. |
| WOS关键词 | SILICA ; CRYSTAL ; GE |
| 资助项目 | Spanish Ministry of Science, Innovation and Universities[MAT2016-77496-R] ; Spanish Ministry of Science, Innovation and Universities[MAT2015-71117-R] ; National Natural Science Foundation of China[NSFC-21850410448] ; National Natural Science Foundation of China[NSFC-21835002] ; China Scholarship Council (CSC) ; SPST of ShanghaiTech University[EM02161943] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000480826900016 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Spanish Ministry of Science, Innovation and Universities ; Spanish Ministry of Science, Innovation and Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; SPST of ShanghaiTech University ; SPST of ShanghaiTech University ; Spanish Ministry of Science, Innovation and Universities ; Spanish Ministry of Science, Innovation and Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; SPST of ShanghaiTech University ; SPST of ShanghaiTech University ; Spanish Ministry of Science, Innovation and Universities ; Spanish Ministry of Science, Innovation and Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; SPST of ShanghaiTech University ; SPST of ShanghaiTech University ; Spanish Ministry of Science, Innovation and Universities ; Spanish Ministry of Science, Innovation and Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; SPST of ShanghaiTech University ; SPST of ShanghaiTech University |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/173658]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Camblor, Miguel A. |
| 作者单位 | 1.CSIC, ICMM, C Sor Juana Ines de la Cruz 3, Madrid 28049, Spain 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Ctr High Resolut Electron Microscopy ChEM, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China 5.CSIC, ICP, Madrid 28049, Spain 6.Johns Hopkins Univ, Inst Nanobiotechnol WSE, 3400 Charles St, Baltimore, MD 21218 USA |
| 推荐引用方式 GB/T 7714 | Lu, Peng,Mayoral, Alvaro,Gomez-Hortiguela, Luis,et al. Synthesis of 3D Large-Pore Germanosilicate Zeolites Using Imidazolium-Based Long Dications[J]. CHEMISTRY OF MATERIALS,2019,31(15):5484-5493. |
| APA | Lu, Peng,Mayoral, Alvaro,Gomez-Hortiguela, Luis,Zhang, Yaping,&Camblor, Miguel A..(2019).Synthesis of 3D Large-Pore Germanosilicate Zeolites Using Imidazolium-Based Long Dications.CHEMISTRY OF MATERIALS,31(15),5484-5493. |
| MLA | Lu, Peng,et al."Synthesis of 3D Large-Pore Germanosilicate Zeolites Using Imidazolium-Based Long Dications".CHEMISTRY OF MATERIALS 31.15(2019):5484-5493. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。