ECNU-36: A Quasi-Pure Polymorph C(H)Beta Silicate Composed of Hierarchical Nanosheet Crystals for Effective VOCs Adsorption
2020-09-21
发表期刊ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (IF:16.1[JCR-2023],16.2[5-Year])
ISSN1433-7851
EISSN1521-3773
发表状态已发表
DOI10.1002/anie.202008327
摘要

A quasi-pure C(H)polymorph of microporous zeolite beta, named ECNU-36, was obtained as a highly crystalline silicate using 1,5-bis(tetramethylimidazolium) hydroxide as organic structure-directing agent (OSDA) in fluoride media. An appropriate concentration of free fluoride in the synthetic mother liquor was crucial to purify the C-H-phase. The framework structure of ECNU-36 consists of polymorph C-H(>95 %) and polymorph B, elucidated by a combination of PXRD data, DIFFaX simulation, EDT, and HRTEM techniques. For the first time, the framework structure of beta C(H)polymorph was directly confirmed and solved using electron diffraction data. The pure-silica ECNU-36 showed an unusual crystal morphology, composed of stacked nanosheets, with typical 17 nm thickness and exposed {100} facets, which exhibited attractive adsorption performance for hydrocarbons and aromatics.

关键词adsorption all-silica high hydrophobicity polymorph C-H zeolite beta
收录类别SCI ; SCIE ; EI
资助项目NSFC of China[21872052][21533002][21972043][21972044] ; China Ministry of Science and Technology[2016YFA0202804] ; Young Elite Scientist Sponsorship Program by CAST[2017QNRC001] ; National Key Research and Development Program of China[21835002] ; ChEM, SPST of Shanghai Tech University[EM02161943] ; Shanghai Synchrotron Radiation Facility[j13sr0021]
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000552789700001
出版者WILEY-V C H VERLAG GMBH
WOS关键词VOLATILE ORGANIC-COMPOUNDS ; ZEOLITE-BETA ; CRYSTALLIZATION ; CATALYST ; METHANOL ; NMR ; EQUILIBRIA ; CONVERSION ; MEMBRANES ; LOCATION
原始文献类型Article
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/122681
专题物质科学与技术学院_硕士生
物质科学与技术学院_PI研究组_马延航组
通讯作者Jiang, Jingang; Ma, Yanhang; Wu, Peng
作者单位
1.East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, North Zhongshan Rd 3663, Shanghai 200062, Peoples R China
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
通讯作者单位物质科学与技术学院
推荐引用方式
GB/T 7714
Jiao, Meichen,Huang, Ju,Xu, Hao,et al. ECNU-36: A Quasi-Pure Polymorph C(H)Beta Silicate Composed of Hierarchical Nanosheet Crystals for Effective VOCs Adsorption[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2020.
APA Jiao, Meichen.,Huang, Ju.,Xu, Hao.,Jiang, Jingang.,Guan, Yejun.,...&Wu, Peng.(2020).ECNU-36: A Quasi-Pure Polymorph C(H)Beta Silicate Composed of Hierarchical Nanosheet Crystals for Effective VOCs Adsorption.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.
MLA Jiao, Meichen,et al."ECNU-36: A Quasi-Pure Polymorph C(H)Beta Silicate Composed of Hierarchical Nanosheet Crystals for Effective VOCs Adsorption".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020).
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