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学科主题: 物理化学
题名: Crystallization and morphology of mordenite zeolite influenced by various parameters in organic-free synthesis
作者: Zhang, Ling1, 2;  Xie, Sujuan1;  Xin, Wenjie1;  Li, Xiujie1;  Liu, Shenglin1;  Xu, Longya1
通讯作者: 徐龙伢
关键词: Microporous materials ;  Nanostructures ;  Crystal growth ;  Electron microscopy ;  X-ray diffraction
刊名: MATERIALS RESEARCH BULLETIN
发表日期: 2011-06-01
DOI: 10.1016/j.materresbull.2011.02.018
卷: 46, 期:6, 页:894-900
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 804
产权排名: 1,1
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
摘要: Crystallization and morphology of mordenite zeolite influenced by various parameters in organic-free synthesis
研究领域[WOS]: Materials Science
英文摘要: A series of mordenite zeolites with different morphologies were synthesized via a facile organic-free hydrothermal route, and characterized by X-ray diffraction, scanning electron microscopy, X-ray fluorescence spectrometer and N(2) adsorption-desorption techniques. Influences of synthetic parameters, including seed crystal, silicon precursor, SiO(2)/Al(2)O(3), Na(2)O/SiO(2) and H(2)O/SiO(2), on mordenite crystallization were investigated systematically. It was found that mordenite zeolites with various morphologies, such as fiber-like, rod-like, prism-like and needle-like ones could be synthesized in control. Especially, novel nano fiber-like MOR crystals with high c/b aspect ratio were prepared from low silica concentration system, which was manipulated by using small initial SiO(2)/Al(2)O(3) ratio, large H(2)O/SiO(2) and silicon source with slow dissolution rate. Moreover, mordenite samples with various morphologies exhibited different mesopore property and thermal stability. (C) 2011 Elsevier Ltd. All rights reserved.
关键词[WOS]: SOLID ACID CATALYSTS ;  HYDROTHERMAL SYNTHESIS ;  CRYSTAL MORPHOLOGY ;  MOLECULAR-SIEVES ;  SIZE ;  CRACKING
语种: 英语
WOS记录号: WOS:000291373500019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115347
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,Xie, Sujuan,Xin, Wenjie,et al. Crystallization and morphology of mordenite zeolite influenced by various parameters in organic-free synthesis[J]. MATERIALS RESEARCH BULLETIN,2011,46(6):894-900.
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