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Paper Titles
Thermodynamic Characterization on Hydrogen Absorption and Desorption Reactions of Lithium – Silicon Alloy
p.2815
Hydrogen Storage in Nitrides by the Use of Ammonia as a Hydrogen Carrier
p.2819
Hydrogen Permeation Properties of Pd-Coated Ni37.5Nb27.5Zr25Co5Ta5 Amorphous Membrane
p.2823
A New Concept for Alloy Design of Nb-Based Hydrogen Permeable Alloys with High Hydrogen Permeability and Strong Resistance to Hydrogen Embrittlement
p.2827
Hydrogen Permeation of Pd-Free V-Based Metallic Membranes for Hydrogen Separation and Purification
p.2831
Influence of Temperature on Self-Discharge and High-Rate Discharge Characteristics of La-Rich AB5-Based MH Alloy Electrode
p.2835
Effect of Annealing on the Hydrogen Permeation and Mechanical Behaviour of Nb-Ni-Zr Alloy Membranes
p.2839
Hydrogen Storage Properties of Mg-Ni Alloy Catalysed by Multi-Walled Carbon Nanotubes
p.2843
The Effects of Cryogenic Milling and Catalytic Additives on the Hydrogen Desorption Behaviour of Nanostructured MgH2
p.2847

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

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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.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

2831-2834

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.2831

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Cite this paper

Online since:

June 2010

Authors:

Cheol Young Kim, Hong Seok Chin, Gu Yoo, Kyoung Won Park, Eric Fleury

Keywords:

Catalyst, Hydrogen Dissociation, Hydrogen Permeation, Metal Membrane

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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