Influence of Al Coordinates on Hierarchical Structure and T Atoms Redistribution during Base Leaching of ZSM-5

doi:10.1021/acs.iecr.8b03539

	Influence of Al Coordinates on Hierarchical Structure and T Atoms Redistribution during Base Leaching of ZSM-5
	Li, Junjie 3; Liu, Min 3; Guo, Xinwen 3; Zeng, Shu 1,4; Xu, Shutao 1; Wei, Yingxu 1; Liu, Zhongmin 1; Song, Chunshan 2,3
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2018-11-14
卷号	57 期号:45 页码:15375-15384
ISSN号	0888-5885
DOI	10.1021/acs.iecr.8b03539
通讯作者	Liu, Min(lium@dlut.edu.cn) ; Song, Chunshan(csong@psu.edu)
英文摘要	Al coordinates in ZSM-5 showed significant effects on hierarchical structure and T atoms redistribution during NaOH/TPAOH treatment and different catalytic performances in the methanol-to-propylene reaction. NaOH treatment of parent ZSM-5 with a few extra-framework Al sites mainly involved the desilication process, while an additional alumination process was observed when some Al3+ was added into the NaOH solution, which resulted in mesoporous crystals with intact outer shells. Dealumination-realumination and desilication processes occurred with ZSM-5 with distorted four-coordinate, five-coordinate, or six coordinate Al sites. For TPAOH treatment, the desilication recrystallization process occurred with parent ZSM-5 and resulted in hollow crystals with ultrasilica shells via Si redistribution, consequently 2.5 times the lifetime of parent ZSM-5 by restricting external coke deposition. By comparison, desilication, dealumination, and (Si, Al)-recystallization were observed for ZSM-5 with distorted four-coordinate Al sites, involving both Si and Al atoms redistribution processes resulting in abundant mesopores and a high-silica outer surface, which showed almost times the lifetime of parent ZSM-5.
资助项目	National Key Research and Development Program of China[2018YFB0604801]
WOS关键词	GALLOPHOSPHATE MOLECULAR-SIEVE ; HYDROCARBONS CONVERSION ; CATALYTIC-PROPERTIES ; P-31 NMR ; ZEOLITE CATALYSTS ; MECHANISTIC BASIS ; MFI ZEOLITES ; METHANOL ; H-ZSM-5 ; DESILICATION
WOS研究方向	Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000451101900016
资助机构	National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166604]
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	Liu, Min; Song, Chunshan
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Penn State Univ, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, Dept Energy & Mineral Engn, University Pk, PA 16802 USA 3.Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Junjie,Liu, Min,Guo, Xinwen,et al. Influence of Al Coordinates on Hierarchical Structure and T Atoms Redistribution during Base Leaching of ZSM-5[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2018,57(45):15375-15384.
APA	Li, Junjie.,Liu, Min.,Guo, Xinwen.,Zeng, Shu.,Xu, Shutao.,...&Song, Chunshan.(2018).Influence of Al Coordinates on Hierarchical Structure and T Atoms Redistribution during Base Leaching of ZSM-5.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,57(45),15375-15384.
MLA	Li, Junjie,et al."Influence of Al Coordinates on Hierarchical Structure and T Atoms Redistribution during Base Leaching of ZSM-5".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 57.45(2018):15375-15384.