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Keywords = H isotope transport phenomena

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10 pages, 2179 KiB  
Article
Experimental Determination of Hydrogen Isotope Transport Parameters in Vanadium
by Marta Malo, Igor Peñalva, Jon Azkurreta, Belit Garcinuño, Hao-Dong Liu, David Rapisarda, Hai-Shan Zhou and Guang-Nan Luo
Membranes 2022, 12(6), 579; https://doi.org/10.3390/membranes12060579 - 31 May 2022
Cited by 7 | Viewed by 2012
Abstract
Deuterium permeation through vanadium membranes in a wide range of pressures and the temperature range ~250–550 °C was experimentally investigated. Measurements on the same material were carried out in three laboratories with different features for an extended characterization and for cross-check validation. A [...] Read more.
Deuterium permeation through vanadium membranes in a wide range of pressures and the temperature range ~250–550 °C was experimentally investigated. Measurements on the same material were carried out in three laboratories with different features for an extended characterization and for cross-check validation. A unified equation for deuterium permeability in pure vanadium (99%) was provided as Φ=1.27×104·e8667/T mol m−1 s−1 Pa−0.5, which represents a significant progress for the characterization of the transport properties in this material, given the spread of data, which can currently be found in the literature. Adsorption and recombination rate constants were also measured for hydrogen and deuterium at low pressure for the same range of temperatures. Finally, the influence of the surface roughness was examined by measuring samples with different surface finish. Full article
(This article belongs to the Section Membrane Analysis and Characterization)
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