Ultra-thin Ni dense membrane prepared by polishing treatment of porous nickel support for high-temperature H2 separation

Ultra-thin nickel dense membranes (∼0.5 μm) were developed by polishing treatment of porous nickel supports. The polishing treatment involved the use of 400 grit sand paper, 1000 grit, and 1500 grit, which was able to remove the surface pores due to the ductility of the PNS. The hydrogen permeation...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2016, 33(9), 198, pp.2699-2702
Main Authors: Ryi, Shin-Kun, Han, Jae-Yun, Kim, Chang-Hyun, Seo, Beom-Seok
Format: Article
Language:English
Subjects:
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Ductility tests
Grit
Hydrogen permeation
Industrial Chemistry/Chemical Engineering
Materials Science
Nickel
Penetration
Pinholes
Polishing
Sandpaper
Separation Technology
Thermodynamics
화학공학
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Summary:Ultra-thin nickel dense membranes (∼0.5 μm) were developed by polishing treatment of porous nickel supports. The polishing treatment involved the use of 400 grit sand paper, 1000 grit, and 1500 grit, which was able to remove the surface pores due to the ductility of the PNS. The hydrogen permeation test showed that 4.53×10 −2 mol m −2 s −1 of hydrogen permeation flux through the membrane could be achieved at a temperature of 973K and a pressure difference of 136 kPa. The nitrogen leakage tests confirmed that there were no pinholes on the surface of the ultra-thin nickel dense membrane.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-016-0116-4