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题名: On the formation of vertically oriented MCM-22 zeolite crystal films
作者: Cheng, M;  Hu, G;  Tan, D;  Bao, X
关键词: MCM-22 ;  MWW ;  zeolite film ;  zeolite membrane ;  oriented growth
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2001-12-15
卷: 50, 期:1, 页:69-76
收录类别: SCI
文章类型: Article
部门归属: 5009
项目归属: 502
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: Growth of MCM-22 zeolite films on glass substrates was studied with the focus on the understanding of the unusual vertical crystal orientation. The films formed were characterized by scanning electron microscopy and X-ray diffraction. Separate thin disk-like MCM-22 crystals were found vertically oriented at the early crystallization stage. With crystallization the crystals grew into thick disks and finally into continuous films. The vertically oriented MCM-22 thin crystals could be developed from the orientation of columnar MCM-22 nuclei, which have larger parameters in their c-directions than those in a and b directions. The preferred orientation of MCM-22 nuclei and the fast growth rate in the layer direction are responsible for the vertical growth of MCM-22 zeolite films. (C) 2001 Elsevier Science B.V. All rights reserved.
关键词[WOS]: MOLECULAR-SIEVE CRYSTALS ;  IN-SITU CRYSTALLIZATION ;  GROWTH ;  MEMBRANE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000172607400008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/92001
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:
Cheng, M,Hu, G,Tan, D,et al. On the formation of vertically oriented MCM-22 zeolite crystal films[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2001,50(1):69-76.
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