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Received: 2004-09-03

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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.5 P.369~372


Growth mechanism of a preferentially oriented mordenite membrane

Author(s):  LI Gang, LIN Rui-sen, KIKUCHI Eiichi, MATSUKATA Masahiko

Affiliation(s):  Department of Chemistry, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   gli@zju.edu.cn

Key Words:  Mordenite, Zeolite membrane, Orientation, Evolutionary selection

LI Gang, LIN Rui-sen, KIKUCHI Eiichi, MATSUKATA Masahiko. Growth mechanism of a preferentially oriented mordenite membrane[J]. Journal of Zhejiang University Science B, 2005, 6(5): 369~372.

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author="LI Gang, LIN Rui-sen, KIKUCHI Eiichi, MATSUKATA Masahiko",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

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%J Journal of Zhejiang University SCIENCE B
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%DOI 10.1631/jzus.2005.B0369

T1 - Growth mechanism of a preferentially oriented mordenite membrane
A1 - LI Gang
A1 - LIN Rui-sen
A1 - KIKUCHI Eiichi
A1 - MATSUKATA Masahiko
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 5
SP - 369
EP - 372
%@ 1673-1581
Y1 - 2005
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.B0369

A preferentially oriented mordenite membrane was successfully prepared on a seeded porous a-alumina support. Characterization results of XRD (X-ray diffractometer) and FE-SEM (field emission scanning electron microscope) revealed that evolutionary selection might predominantly contribute to the formation of the sharply oriented mordenite membrane. The necessary conditions under which evolutionary selection occurs are: (a) the number density of nuclei on the support surface should be high enough at the early stage; (b) the crystals should grow fastest along one direction; and (c) the zeolite layer should proceed via the successive growth of the crystals nucleated on the support surface instead of the accumulation of the crystals formed in the bulk solution.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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