Kinetics of Hydrogen Absorption from a Gas Phase by Diffusion Filtering Pd–Y Membranes
О. В. Акимова, А. А. Велигжанин, Rоman D. Svetogorov, С. В. Горбунов, Н. Р. Рошан, Г. С. Бурханов
Abstract
Diffusion filtering metallic palladium–yttrium membranes are subjected to hydrogenation from a gas phase and are studied by X-ray diffraction using synchrotron radiation. Boundaries of the formation of hydrogen-enriched phases are improved for a range of alloying component content, which is critical for their formation. The effect of the initial state of the alloy on conditions of hydride phase formation in the system is demonstrated. The content of hydrogen occluded in the membrane structure and hydrogen-induced lattice dilatations are determined. The parameters of the alloy substructure are calculated.
Topics & Concepts
HydrogenHydridePalladiumAlloyMembranePalladium hydrideChemistryYttriumDiffusionKineticsAnalytical Chemistry (journal)Phase (matter)MetalDiffractionCrystallographyThermodynamicsCatalysisChromatographyOpticsOrganic chemistryQuantum mechanicsOxideBiochemistryPhysicsCatalysts for Methane ReformingAdvanced materials and compositesCatalysis and Hydrodesulfurization Studies