The investigation of hydrogen transport through niobium membranes with a modifying coating based on palladium nanocrystallites | Izvestiya vuzov. Fizika. 2022. № 2. DOI: 10.17223/00213411/65/2/106

The investigation of hydrogen transport through niobium membranes with a modifying coating based on palladium nanocrystallites

A method for obtaining a modifying nanocrystalline coating for gas diffusion Pd-Nb-Pd membranes has been developed. The modifying coating in the form of palladium nanocrystallites was synthesized by electrochemical deposition. The hydrogen flux density through the modified Pd-Nb-Pd membranes reaches a value of 0.024 mol / s ∙ m² in the gauge pressure range at an optimal operating temperature of 300 ° C. The obtained value for membranes modified with a nanostructured coating is 1.6 times higher than for a similar membranes without a modifying layer. It has been experimentally confirmed that modification of the membrane surface with a nanostructured coating increases the rate of hydrogen transfer through Pd-Nb-Pd membranes due to the acceleration of dissociative-associative processes on the surface.

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Keywords

hydrogen permeability, palladium-niobium membranes, group-V metals, surface modification, palladium nanocrystallites, high-purity hydrogen

Authors

Name	Organization	E-mail
Petriev I.S.	Kuban State University	petriev_iliya@mail.ru
Lutsenko I.S.	Kuban State University	vanke08@mail.ru
Pushankina P.D.	Kuban State University	pampush16@gmail.com
Frolov V.Y.	Kuban State University	frolovv73@mail.ru
Glazkova J.S.	Kuban State University	elena.ich@mail.ru
Malkov T.I.	Kuban State University	timohamal@mail.ru
Gladkikh A.M.	Kuban State University	gladkikh_angelina20@mail.ru
Otkidach M.A.	Kuban State University	mimilesha.pelmesha@gmail.com
Sipalo E.B.	Kuban State University	olapis2004@yandex.ru
Baryshev P.M.	Kuban State University
Shostak N.A.	Kuban State University	shostak@kubstu.ru
Kopytov G.F.	Kuban State University	g137@mail.ru

Всего: 12

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