|標題:||Preparation of palladium membrane by electroplating on AISI 316L porous stainless steel supports and its use for methanol steam reformer|
|作者:||Chen, S. C.|
Tu, G. C.
Hung, Caryat C. Y.
Huang, C. A.
Rei, M. H.
Department of Materials Science and Engineering
|關鍵字:||electroplating;porous stainless steel;rotating speed;hydrogen permeation;hydrogen embrittlement|
|摘要:||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.|
|期刊:||JOURNAL OF MEMBRANE SCIENCE|
|Appears in Collections:||Articles|
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