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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2022.32.2.116

Preparation of Pd/Al2O3, Pd/Ag/Al2O3 Membranes and Evaluation of Hydrogen Permeation Performance  

Lee, Jeong In (Department of Chemical and Biochemical Engineering, Dongguk University)
Shin, Min Chang (Department of Chemical and Biochemical Engineering, Dongguk University)
Zhuang, Xuelong (Department of Chemical and Biochemical Engineering, Dongguk University)
Hwang, Jae Yeon (Department of Chemical and Biochemical Engineering, Dongguk University)
Kim, Eok yong (Department of Renewable Energy Engineering, Dongguk University)
Jeong, Chang-Hun (Hygenenergy Co., Ltd.)
Park, Jung Hoon (Department of Chemical and Biochemical Engineering, Dongguk University)
Publication Information
Membrane Journal / v.32, no.2, 2022 , pp. 116-125 More about this Journal
Abstract
In this experiment, an α-Al2O3 ceramic hollow fiber was used as a support, and a hydrogen membrane plated with Pd and Pd-Ag was manufactured through electroless plating. The Pd-Ag membrane was annealed at 500℃ for 10 h to form an alloy of Pd and Ag. It was confirmed that it became a Pd-Ag alloy through EDS (Energy Dispersive X-ray Spectroscopy) analysis. Also, the thickness of the Pd, Pd-Ag plating layer was measured to be about 8.98 and 9.29 ㎛ through SEM (Scanning Electron Microscope) analysis respectively. Hydrogen permeation experiment was performed using the H2 gas and mixed gas (H2 and N2) in the range of 350~450℃ and 1-4 bar using the prepared hydrogen membrane. Under the H2 gas condition, the Pd and Pd-Ag membrane has a flux of up to 21.85 and 13.76 mL/cm2·min and also separation factors of 1216 and 361 were obtained in the mixed gas at 450℃ and 4 bar conditions respectively.
Keywords
$Al_2O_3$ hollow fiber; electroless plating; hydrogen separation; Pd-Ag alloy; Pd composite membrane;
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