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	Influence of al coordinates on hierarchical structure and t atoms redistribution during base leaching of zsm-5
	Li, Junjie1; Liu, Min1; Guo, Xinwen1; Zeng, Shu2,3; Xu, Shutao3; Wei, Yingxu3; Liu, Zhongmin3; Song, Chunshan1,4
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.
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
WOS类目	Engineering, Chemical
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000451101900016
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373059
专题	大连化学物理研究所
通讯作者	Liu, Min; Song, Chunshan
作者单位	1.Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 4.Penn State Univ, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, Dept Energy & Mineral Engn, University Pk, PA 16802 USA
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.

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