کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7706412 | 1497309 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
PdAg/alumina membranes prepared by high power impulse magnetron sputtering for hydrogen separation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The development of hydrogen purification membranes that meet market demands such as high purity, dynamic hydrogen production even at small scale, and reduced costs is still an open question. With this view, the present study aims at developing, for the first time, a method based on high power impulse magnetron sputtering for the deposition of Pd77Ag23 (wt%) films onto porous alumina substrates to achieve composite membranes with high hydrogen permeability and stability. This technique allows the deposition of films also on complex geometries and can be easily scaled up, thus making this technology a potential candidate for preparing high performing membranes. Membranes made by stable and porous alumina supports and metallic, dense and crystalline Pd77Ag23 layers, from 3.5 μm to 17 μm thick, have been prepared and tested. The membranes showed good hydrogen permeability values, showing flux values up to a maximum of 0.62 molH2 mâ2 sâ1 at 450 °C and ÎP of 300 kPa. The resistance to hydrogen embrittlement and the chemical inertness to syngas were also demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 16, 19 April 2018, Pages 7982-7989
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 16, 19 April 2018, Pages 7982-7989
نویسندگان
S. Barison, S. Fasolin, S. Boldrini, A. Ferrario, M. Romano, F. Montagner, S.M. Deambrosis, M. Fabrizio, L. Armelao,