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Korean Journal of Chemical Engineering, Vol.29, No.1, 59-63, 2012
Pd-Cu alloy membrane deposited on alumina modified porous nickel support (PNS) for hydrogen separation at high pressure
This study reports on the hydrogen permeation properties of Pd-Cu alloy membranes at high pressures. A 7 μm thick Pd-Cu alloy membrane was prepared on an alumina-modified porous nickel support (PNS) by our developed magnetron sputtering and Cu-reflow method at 700℃ for 2 hours. The membrane was mounted in a stainless steel permeation cell with a gold-plated stainless steel O-ring. Helium leak testing confirmed that the membrane and membrane module were free of defects. Permeation tests were then conducted using hydrogen at temperatures in the range from 678 to 816 K with a transmembrane pressure difference of 1-20 bars, which showed that the membrane had a hydrogen permeation flux of 1.06 mol m^(-2) s^(-1) at a temperature of 816 K and a pressure difference of 20 bars. EDX analysis was carried out after hydrogen permeation test at 816 K and showed that there was no intermetallic diffusion between the Pd-Cu layer and PNS because the alumina layer inhibited it effectively.
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[Cited By]
- Hwang GJ, Choi HS, Korean Journal of Chemical Engineering, 29(12), 1796, 2012
- Seo BS, Han JY, Lee KY, Kim DW, Ryi SK, Korean Journal of Chemical Engineering, 34(1), 266, 2017
- Kim CH, Han JY, Lim H, Kim DW, Ryi SK, Korean Journal of Chemical Engineering, 34(4), 1260, 2017
- Lee EH, Kim TW, Byun SG, Seo DW, Hwang HJ, Kim HS, Ryi SK, Clean Technology, 28(1), 54, 2022
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