Hydrogen Permeation of Pd-Free V-Based Metallic Membranes for Hydrogen Separation and Purification

Title
Hydrogen Permeation of Pd-Free V-Based Metallic Membranes for Hydrogen Separation and Purification
Authors
김철영진홍석유구박경원에릭플러리
Keywords
Hydrogen permeation; metal membrane; catalyst; hydrogen dissociation
Issue Date
2010-06
Publisher
Materials science forum
Citation
VOL 654-656, 2831-2834
Abstract
With the aim of replacing Pd coating layer currently used for the dissociation and recombination of hydrogen molecules, the performance of Nb and Ta thin layers as catalystforhydrogen permeationwas evaluated at 673 K. Although not as efficient as Pd, Nb and Ta coating layers can nevertheless provide a reasonable H2 dissociation and recombination rates. Thereduced values of hydrogen permeabilityin comparison to that of Pd were explained by the reduced catalytic properties of Nb and Ta and the formation of hydrides on the surface.
URI
http://pubs.kist.re.kr/handle/201004/37786
ISSN
0255-5476
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KIST Publication > Article
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