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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received February 28, 2011
Accepted May 9, 2011

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Pd-Cu alloy membrane deposited on alumina modified porous nickel support (PNS) for hydrogen separation at high pressure

Shin-Kun Ryi^† Jong-Soo Park Kyung-Ran Hwang Dong-Won Kim¹ Hyo-Sun An¹

Energy Materials Center, Korea Institute of Energy Research (KIER), 102 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Korea ¹Department of Advanced Materials Engineering, Kyonggi University, Suwon 442-760, Korea

h2membrane@kier.re.kr

Korean Journal of Chemical Engineering, January 2012, 29(1), 59-63(5), 10.1007/s11814-011-0127-0

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Abstract

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.

Keywords

Hydrogen Separation Pd-based High-pressure Permeation

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