Hydrogen Permeation of Pd-Free V-Based Metallic Membranes for Hydrogen Separation and Purification
- Hydrogen Permeation of Pd-Free V-Based Metallic Membranes for Hydrogen Separation and Purification
- 김철영; 진홍석; 유구; 박경원; 에릭플러리
- Hydrogen permeation; metal membrane; catalyst; hydrogen dissociation
- Issue Date
- Materials science forum
- VOL 654-656, 2831-2834
- 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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