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Ultrafast crystallization of mesoporous Sn-MFI single crystals achieved by addition of the cationic polyelectrolyte in starting gels

文献类型：期刊论文

作者Yuan, En-Hui4; Li, Meng4; Zhou, Jia-Feng3; Niu, Yiming2; Song, Yong-Hong4; Zhang, Kun3; Yang, Ming-Hui4; Jiang, Jinqiang4; Zhang, Bingsen2; Xiao, Feng-Shou1
刊名MICROPOROUS AND MESOPOROUS MATERIALS
出版日期2022-05-01
卷号337页码:10
关键词Cationic polyelectrolyte Ultrafast crystallization Mesoporous Sn-MFI single Crystal Electrostatic interaction Heterogeneous nucleation
ISSN号1387-1811
DOI10.1016/j.micromeso.2022.111922
通讯作者Zhang, Kun(kzhang@chem.ecnu.edu.cn) ; Zhang, Bingsen(bszhang@imr.ac.cn) ; Liu, Zhong-Wen(zwliu@snnu.edu.cn)
英文摘要Hetematoms substituted zeolites (HSZ) are important absorbents/catalysts for many industrial processes. However, precisely locating the heteroatoms in the desired zeolite frameworks is still challenged by the low crystallization rate. Herein, we report that poly dimethyl diallyl ammonium chloride (PDDA) can greatly accelerate the HSZ crystallization with the simultaneous creation of mesopores. Significantly, highly crystallized Sn-MFI single crystals are obtained within 6 h, which is over one hundred times faster than that of the available methods (similar to 720 h). The addition of PDDA is revealed to speed up the in-situ depolymerization and re-condensation of nanosized silica precursors, leading to the rapid crystallization of MFI framework with the concomitantly homogeneous incorporation of tetra-coordinated Sn atoms. The obtained Sn-MFI mesoporous zeolites exhibit excellent catalytic performance for the hydration of epichlomhydrin to 1, 2-diol. More importantly, the realization of Sn-MEL, ZSM-11, Ga-MFI and ZSM-5 zeolites with prominently short time and the diversity of the cationic polyelectrolyte make the thus developed strategy a highly efficient and general method for synthesizing HSZ.
资助项目National Natural Science Foundation of China[21902097] ; National Natural Science Foundation of China[21636006] ; Postdoctoral Science Foundation of China[2019M653861XB] ; Natural Science Foundation of Shaanxi Province[2020JQ-409]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000799814400001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Postdoctoral Science Foundation of China ; Natural Science Foundation of Shaanxi Province
源URL[http://ir.imr.ac.cn/handle/321006/174221]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhang, Kun; Zhang, Bingsen; Liu, Zhong-Wen
作者单位1.Zhejiang Univ, Coll Chem & Biol Engn, Minist Educ, Key Lab Biomass Chem Engn, Hangzhou 310027, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.East China Normal Univ, Coll Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
4.Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Syngas Convers Shaanxi Prov, Xian 710119, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, En-Hui,Li, Meng,Zhou, Jia-Feng,et al. Ultrafast crystallization of mesoporous Sn-MFI single crystals achieved by addition of the cationic polyelectrolyte in starting gels[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2022,337:10.
APA Yuan, En-Hui.,Li, Meng.,Zhou, Jia-Feng.,Niu, Yiming.,Song, Yong-Hong.,...&Liu, Zhong-Wen.(2022).Ultrafast crystallization of mesoporous Sn-MFI single crystals achieved by addition of the cationic polyelectrolyte in starting gels.MICROPOROUS AND MESOPOROUS MATERIALS,337,10.
MLA Yuan, En-Hui,et al."Ultrafast crystallization of mesoporous Sn-MFI single crystals achieved by addition of the cationic polyelectrolyte in starting gels".MICROPOROUS AND MESOPOROUS MATERIALS 337(2022):10.

入库方式： OAI收割

来源：金属研究所

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