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题名: Synthesis, characterization, and catalytic properties of MWW zeolite with variable Si/Al ratios
作者: Liu, Lin;  Cheng, Mojie;  Ma, Ding;  Hu, Gang;  Pan, Xiulian;  Bao, Xinhe
关键词: MWW zeolite ;  Si/Al ratio ;  structural conversion ;  aluminum incorporation ;  Bronsted acidity ;  toluene disproportionation
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2006-09-08
DOI: 10.1016/j.micromeso.2006.04.003
卷: 94, 期:1-3, 页:304-312
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Synthesis of aluminosilicate MWW zeolite with variable Si/Al ratios from deboronated ERB-1 zeolite through a process of structural conversion has been studied and the obtained material has been characterized in detail. Incorporation of aluminum species into the framework of deboronated ERB-1 zeolite and the acidity of calcined MWW zeolite have been confirmed by a number of physicochemical techniques. Aluminum species in the lamellar MWW zeolite precursor are not thermally stable, and partial dealumination takes place during the calcination process. MWW zeolite shows strong Bronsted acidity, and the amount of Bronsted acid sites is closely related with the amount of framework aluminum in MWW zeolite. Disproportionation of toluene was carried out over MWW zeolite with different Si/Al ratios, and the catalytic performance has been correlated with the Bronsted acidity of MWW zeolite. (c) 2006 Elsevier Inc. All rights reserved.
关键词[WOS]: MCM-22 ZEOLITE ;  MOLECULAR-SIEVE ;  CRYSTALLIZATION ;  KENYAITE ;  CRYSTALS ;  H-MCM-22 ;  ALUMINUM ;  ACIDITY ;  ANALOG
语种: 英语
WOS记录号: WOS:000240279200039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140312
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Lin,Cheng, Mojie,Ma, Ding,et al. Synthesis, characterization, and catalytic properties of MWW zeolite with variable Si/Al ratios[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2006,94(1-3):304-312.
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