Uniformly a-oriented MFI zeolite films by secondary growth

被引:122
作者
Choi, J
Ghosh, S
Lai, ZP
Tsapatsis, M
机构
[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
[2] Nanyang Technol Univ, Div Chem & Biomol Engn, Singapore 637722, Singapore
关键词
hydrothermal synthesis; monolayers; thin films; zeolites;
D O I
10.1002/anie.200503011
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Oriented assembly of zeolite crystals on a porous support followed by secondary growth leads to continuous, thin, uniformly oriented zeolite films (see picture for a cross-sectional SEM image) of MFI with the 5.1 x 5.5-Å zigzag channels perpendicular to the support. These a-oriented films along with their previously reported b-oriented counterparts are the first set of thin molecular-sieve membranes with uniform but drastically different orientations. (Figure Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1154 / 1158
页数:5
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