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Hydrogen Permeation Properties and Chemical Stability of Novel Pd‐Free Alloy Membranes Based on the V‐Y System
Author(s) -
Mag E.,
Jeon S. I.,
Park J. H.,
Fleury E.
Publication year - 2012
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201100456
Subject(s) - membrane , permeation , hydrogen , vanadium , palladium , alloy , chemical stability , chemical engineering , yttrium , materials science , metal , hydrogen purifier , chemistry , inorganic chemistry , hydrogen production , metallurgy , organic chemistry , catalysis , oxide , biochemistry , engineering
No investigation has yet been accomplished to screen the yttrium‐doped effects on vanadium‐based metal membranes. Synthesis, hydrogen permeation properties, and chemical stability of a novel palladium (Pd)‐coated V 99 Y 1 alloy membrane are presented. Hydrogen permeation experiments have been performed to investigate the hydrogen transport properties through the Pd‐coated V 99 Y 1 alloy membrane in the pressure range of 1.5–3.0 bar under pure hydrogen as well as H 2 ‐CO 2 and H 2 ‐CO gas mixtures at 400 °C. The maximum hydrogen permeation rate was ∼32 mL min –1 cm –2 for a 0.5 mm thick membrane under pure hydrogen. The results offer new directions in the synthesis of novel non‐Pd‐based metal membranes for hydrogen separation in precombustion capture applications.