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    A hybrid processing method for high performance hydrogen-selective silica membranes

    20290_20290.pdf (661.8Kb)
    Access Status
    Open access
    Authors
    Nair, Balagopal
    Gopalakrishnan, S.
    Yoshino, Y.
    Nomura, M.
    Nakao, S.
    Date
    2007
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Gopalakrishnan, Suraj and Yoshino, Yasushi and Nomura, Mikihiro and Nair, Balagopal N. and Nakao, Shin-Ichi. 2007. A hybrid processing method for high performance hydrogen-selective silica membranes. Journal of Membrane Science. 297 (1-2): 5-9.
    Source Title
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2007.03.034
    Faculty
    Department of Applied Chemistry
    Division of Engineering, Science and Computing
    Faculty of Science
    Remarks

    Copyright 2007 Elsevier B.V. All rights reserved

    NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, Volume 297, Issues 1–2, 5 July 2007, Pages 5–9, http://dx.doi.org/10.1016/j.memsci.2007.03.034

    URI
    http://hdl.handle.net/20.500.11937/3776
    Collection
    • Curtin Research Publications
    Abstract

    Development of high performance hydrogen-selective inorganic membrane has become an important requisite for the production of hydrogen, an energy carrier that could cater the ongoing energy revolution. This paper describes a novel, hybrid method to process high performance hydrogen perm-selective membranes by the rapid CVD modification of a sol-gel silica layer. The initial N2 permeance values through a membrane were brought down by four orders of magnitude to 2.741010 mol m2 s1 Pa1 within 5 min of CVD, while maintaining the H2 permeance values as high as 6.43107 mol m2 s1 Pa1 (H2/N2 = 2300). It is likely that the reduction in the CVD zone thickness achieved by the presence of pre-existing sol-gel silica layer is the reason for the rapid modification of the pore structure to high performance membranes.

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