The paper deals with hydrogen transfer through Pd-23%Ag alloy membrane, the surface of which is modified by the electrolytic deposition of highly dispersed palladium. The dependence between the density of hydrogen flow and its excess pressure on the input surface of membrane is well approximated by the first-order curve. This fact indicates that the process of hydrogen permeability is defined by its dissociation on the input surface. Activation energy of this process is 47.9 kJ/mol which considerably exceeds that of the process of hydrogen transfer through palladium (22–30 kJ/mol). This confirms the fact that the chemisorption is a rate-controlling step of the hydrogen transfer through membrane.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 138–143, September, 2017.
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Petriev, I.S., Frolov, V.Y., Bolotin, S.N. et al. Kinetic Characteristics of Hydrogen Transfer Through Palladium-Modified Membrane. Russ Phys J 60, 1611–1617 (2018). https://doi.org/10.1007/s11182-018-1258-0
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DOI: https://doi.org/10.1007/s11182-018-1258-0