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

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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 °C 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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Authors and Affiliations

  1. Energy Materials Center, Korea Institute of Energy Research (KIER), 102 Gajeong-ro, Yuseong-gu, Daejeon, 305-343, Korea

    Shin-Kun Ryi, Jong-Soo Park & Kyung-Ran Hwang

  2. Department of Advanced Materials Engineering, Kyonggi University, Suwon, 442-760, Korea

    Dong-Won Kim & Hyo-Sun An

Authors
  1. Shin-Kun Ryi
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  2. Jong-Soo Park
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  3. Kyung-Ran Hwang
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  4. Dong-Won Kim
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  5. Hyo-Sun An
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Correspondence to Shin-Kun Ryi.

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Ryi, SK., Park, JS., Hwang, KR. et al. Pd-Cu alloy membrane deposited on alumina modified porous nickel support (PNS) for hydrogen separation at high pressure. Korean J. Chem. Eng. 29, 59–63 (2012). https://doi.org/10.1007/s11814-011-0127-0

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  • DOI: https://doi.org/10.1007/s11814-011-0127-0

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