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题名: Organic template-free synthesis of ZSM-5/ZSM-11 co-crystalline zeolite
作者: Zhang, Ling1, 2;  Liu, Shenglin1;  Xie, Sujuan1;  Xu, Longya1
关键词: ZSM-5 ;  ZSM-11 ;  Co-crystalline zeolite ;  Organic template-free synthesis ;  Crystallization
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2012
DOI: 10.1016/j.micromeso.2011.05.033
卷: 147, 期:1, 页:117-126
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: A series of ZSM-5/ZSM-11 co-crystalline zeolites with various compositions and morphologies were successfully synthesized via an organic template-free hydrothermal route and characterized by XRD, XRF, SEM, NMR and N-2 adsorption/desorption technologies. The effects of raw materials and batch composition were investigated systematically. Various silicon sources can be employed in the organic template-free synthesis of ZSM-5/ZSM-11 co-crystalline zeolite, however only a few types of aluminum sources are available. This organic template-free system is favorable to the aluminum-rich zeolite. With the increase of initial SiO2/Al2O3 ratio, the ZSM-5 percentage in the ZSM-5/ZSM-11 co-crystalline zeolite increases as well as the crystal size, and especially the morphology of ZSM-5/ZSM-11 co-crystalline zeolite prepared from the colloidal silica-NaAlO2 solution system changes gradually from nano-rod aggregation, micro-spindle to single hexagon and then to twinned hexagon crystals. Moreover, Na+ and OH- in the initial materials can promote the nucleation of the ZSM-5/ZSM-11 co-crystalline zeolite significantly and are beneficial to the formation of crystals with relatively low length/width ratio, while K+ postpones the crystallization process seriously. (C) 2011 Elsevier Inc. All rights reserved.
关键词[WOS]: STRUCTURE-DIRECTING AGENTS ;  SILICA SOURCE ;  ZSM-5 ;  ABSENCE ;  ETHYLBENZENE ;  INTERGROWTH ;  FERRIERITE ;  ALKYLATION ;  MORPHOLOGY ;  CATALYSTS
语种: 英语
WOS记录号: WOS:000295906200016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143125
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
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Ling,Liu, Shenglin,Xie, Sujuan,et al. Organic template-free synthesis of ZSM-5/ZSM-11 co-crystalline zeolite[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2012,147(1):117-126.
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