Self-Assembly of Cetyltrimethylammonium Bromide and Lamellar Zeolite   Precursor for the Preparation of Hierarchical MWW Zeolite

doi:10.1021/acs.chemmater.6b02155

CORC > 北京大学 > 化学与分子工程学院

	Self-Assembly of Cetyltrimethylammonium Bromide and Lamellar Zeolite Precursor for the Preparation of Hierarchical MWW Zeolite
	Xu, Le ; Ji, Xinyi ; Li, Shenhui ; Zhou, Zhengyang ; Du, Xin ; Sun, Junliang ; Deng, Feng ; Che, Shunai ; Wu, Peng
刊名	CHEMISTRY OF MATERIALS
	2016
关键词	MOLECULAR-SIEVE 2-DIMENSIONAL ZEOLITES CRYSTALLINE ZEOLITE POROUS MATERIALS BETA-ZEOLITE NANOSHEETS CATALYSIS MCM-22 PERSPECTIVES ROUTE
DOI	10.1021/acs.chemmater.6b02155
英文摘要	Construction of hierarchical zeolite catalysts from lamellar zeolite precursor is challenging and promising for industrial catalysis. Although numerous efforts have been dedicated to control the organization of zeolite nanosheets by postsynthetic approaches or employing complex surfactants in hydrothermal synthesis, there is still no successful case that the hierarchical lamellar zeolite is hydrothermally synthesized by the self-assembly of the commercially available simple surfactant cetyltrimethylammonium bromide (CTAB) and inorganic zeolite precursor. In traditional syntheses, the self assembly of simple surfactants and the growth of microporous framework are hardly compatible from both thermodynamic and kinetic viewpoints, preferring to cause phase separation. Herein, we approach for the first time the hydrothermal synthesis of a mesostructured multilamellar zeolite ECNU-7P, consisting of an alternative stacking of inorganic MWW zeolite nanosheets and organic CTAB layers with large interlayer spacing (25 angstrom), by a zeolite seed and CTAB-assisted dissolution-recrystallization route. Correlated 2D H-1-Si-29 solid-state NMR, X-ray, electron microscopy, and rotation electron diffraction analyses provide molecular-level insights into the guest-host interactions between organic surfactant and inorganic framework during the self-assembly and structure evolution process. Moreover, the calcined Al-ECNU-7 possessing a hierarchical mesostructure proves to serve as a highly active, selective, and stable solid acid catalyst for triisopropylbenzene cracking as well as acylation of anisole.; NSFC of China [21533002, 21373089]; MOE of China [2012007613000]; SLAD [B409]; China Postdoctoral Science Foundation [2015M580012]; SCI(E); EI; ARTICLE; pwu@chem.ecnu.edu.cn; 12; 4512-4521; 28
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/492116]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xu, Le,Ji, Xinyi,Li, Shenhui,et al. Self-Assembly of Cetyltrimethylammonium Bromide and Lamellar Zeolite Precursor for the Preparation of Hierarchical MWW Zeolite[J]. CHEMISTRY OF MATERIALS,2016.
APA	Xu, Le.,Ji, Xinyi.,Li, Shenhui.,Zhou, Zhengyang.,Du, Xin.,...&Wu, Peng.(2016).Self-Assembly of Cetyltrimethylammonium Bromide and Lamellar Zeolite Precursor for the Preparation of Hierarchical MWW Zeolite.CHEMISTRY OF MATERIALS.
MLA	Xu, Le,et al."Self-Assembly of Cetyltrimethylammonium Bromide and Lamellar Zeolite Precursor for the Preparation of Hierarchical MWW Zeolite".CHEMISTRY OF MATERIALS (2016).