Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

A seeded growth method for the fabrication of high-permeance, high-separation-factor zeolite (siliceous ZSM-5, [Si 96 O 192 ]-MFI) membranes is reported. The method consists of growing the crystals of an oriented seed layer to a well-intergrown film by avoiding events that lead to a loss of preferred orientation, such as twin overgrowths and random nucleation. Organic polycations are used as zeolite crystal shape modifiers to enhance relative growth rates along the desirable out-of-plane direction. The polycrystalline films are thin (∼1 micrometer) with single grains extending along the film thickness and with large in-plane grain size (∼1 micrometer). The preferred orientation is such that straight channels with an open diameter of ∼5.5 angstroms run down the membrane thickness. Comparison with previously reported membranes shows that these microstructurally optimized films have superior performance for the separation of organic mixtures with components that have small differences in size and shape, such as xylene isomers.

Bibliography

Lai, Z., Bonilla, G., Diaz, I., Nery, J. G., Sujaoti, K., Amat, M. A., Kokkoli, E., Terasaki, O., Thompson, R. W., Tsapatsis, M., & Vlachos, D. G. (2003). Microstructural Optimization of a Zeolite Membrane for Organic Vapor Separation. Science, 300(5618), 456–460.

Authors 11
  1. Zhiping Lai (first)
  2. Griselda Bonilla (additional)
  3. Isabel Diaz (additional)
  4. Jose Geraldo Nery (additional)
  5. Khristina Sujaoti (additional)
  6. Miguel A. Amat (additional)
  7. Efrosini Kokkoli (additional)
  8. Osamu Terasaki (additional)
  9. Robert W. Thompson (additional)
  10. Michael Tsapatsis (additional)
  11. Dionisios G. Vlachos (additional)
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Dates
Type When
Created 22 years, 4 months ago (April 17, 2003, 4:04 p.m.)
Deposited 1 year, 7 months ago (Jan. 9, 2024, 9:36 p.m.)
Indexed 1 day, 2 hours ago (Aug. 23, 2025, 12:59 a.m.)
Issued 22 years, 4 months ago (April 18, 2003)
Published 22 years, 4 months ago (April 18, 2003)
Published Print 22 years, 4 months ago (April 18, 2003)
Funders 0

None

@article{Lai_2003, title={Microstructural Optimization of a Zeolite Membrane for Organic Vapor Separation}, volume={300}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1082169}, DOI={10.1126/science.1082169}, number={5618}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Lai, Zhiping and Bonilla, Griselda and Diaz, Isabel and Nery, Jose Geraldo and Sujaoti, Khristina and Amat, Miguel A. and Kokkoli, Efrosini and Terasaki, Osamu and Thompson, Robert W. and Tsapatsis, Michael and Vlachos, Dionisios G.}, year={2003}, month=apr, pages={456–460} }