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Author: search.filters.author.Chen, S. C.Subject: search.filters.subject.electroplating

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    Preparation of palladium membrane by electroplating on AISI 316L porous stainless steel supports and its use for methanol steam reformer
    (2008-04-30)
    Chen, S. C.
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    Tu, G. C.
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    Hung, Caryat C. Y.
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    Huang, C. A.
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    Rei, M. H.
    A novel electroplating method of preparing Pd-membrane on an AISI 316L porous stainless steel support is successfully developed by proper control of rotation speed of the support. The use of low-current density with high-rotation speed enables us to avoid hydrogen absorption during electroplating and to prepare smooth thin surfaced membrane with defect free. The electroplated-Pd-membrane shows well property in the hydrogen permeation, flux and excellent permselectivity (H-2/He > 100,000), and is used in a membrane-assisted steam reformer of methanol for the production of high-purity hydrogen. It was also found that the membrane spontaneously exhibited to resist hydrogen embrittlement under the phase-transition temperature of 280 degrees C, when operated in the temperature range of 250-350 degrees C under the hydrogen pressure of 9 kgf/cm(2). (C) 2008 Elsevier B.V. All rights reserved.