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题名: Electrophoretic technique for hydrothermal synthesis of NaA zeolite membranes on porous alpha-Al2O3 supports
作者: Huang, Aisheng;  Yang, Weishen
关键词: microporous materials ;  crystal growth ;  electron microscopy ;  microstructure
刊名: MATERIALS RESEARCH BULLETIN
发表日期: 2007-04-12
DOI: 10.1016/j.materresbull.2006.07.021
卷: 42, 期:4, 页:657-665
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
英文摘要: Uniform and dense NaA zeolite membranes were prepared on the alpha-Al2O3 support by electrophoretic technique. The membrane morphology and membrane thickness were investigated by XRD, SEM and pervaporation properties for dehydration of 95 wt.% isopropanol/water mixture at 343 K, respectively. Under the action of the applied electric field, the negatively charged zeolite particles could migrate to the support surface homogenously and rapidly, forming uniform and dense membranes in a short time. High quality NaA zeolite membrane, with a separation factor (water/isopropanol) of 3281 and a flux of 1.24 kg/m(2) h, could be prepared by electrophoretic technique with the electrical potential of 1 V. The formation mechanism of zeolite membrane in the electric field is discussed. (c) 2006 Elsevier Ltd. All rights reserved.
关键词[WOS]: SECONDARY GROWTH ;  ZSM-5 MEMBRANES ;  FILMS ;  PERVAPORATION ;  DEPOSITION ;  SEPARATION ;  MIXTURES ;  ALUMINA ;  SURFACES
语种: 英语
WOS记录号: WOS:000245321400009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140641
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.Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Huang, Aisheng,Yang, Weishen. Electrophoretic technique for hydrothermal synthesis of NaA zeolite membranes on porous alpha-Al2O3 supports[J]. MATERIALS RESEARCH BULLETIN,2007,42(4):657-665.
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