Hydrogen Storage in VNx-Hy Thin Films

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dc.contributor.authorBryk, Viktoren
dc.contributor.authorGuglya, Alekseyen
dc.contributor.authorKalchenko, Aleksandren
dc.contributor.authorMarchenko, Ivanen
dc.contributor.authorMarchenko, Yuriyen
dc.contributor.authorSolopikhina (Melnikova), Elenaen
dc.contributor.authorVlasov, Victoren
dc.contributor.authorZubarev, Evgeniy N.en
dc.date.accessioned2022-06-28T22:57:26Z
dc.date.available2022-06-28T22:57:26Z
dc.date.issued2015
dc.description.abstractVanadium or its alloy-based hydrides are intensively studied at the moment with regard to their use as hydrogen absorbents. Most experiments were carried out using “bulk” materials. This paper uses ion beam-assisted deposition technology (IBAD) to create thin-film nanocrystalline VNx-Hy hydrogen storages. The transmission electron microscopy and scanning electron microscopy were used to study the initial stages of the film formation. The main mechanisms of the for mation of intergranular pores in nanogranular structures have been established. The interrelation of the parameters of the IBAD and those of film structure has been shown. The obtained data allowed for the explanation of the mechanisms of hydrogen absorption and desorption by thin films. It was shown that the availability of branched network of intergranular pores allows VNx-Hy structures to accumulate hydrogen within a few minutes at a pressure of 0.5 MPa. Hydrogen in amount of up to 2.55 wt% is retained in the films of 3 μm thick at room temperature and atmos pheric pressure. The hydrogen desorption starts at 100˚Cen
dc.identifier.citationHydrogen Storage in VNx-Hy Thin Films / Viktor Bryk [et al.] // Open Access Library Journal. – 2015. – V. 2. – e2228. – [P. 1-11].en
dc.identifier.doidoi.org/10.4236/oalib.1102228
dc.identifier.urihttps://repository.kpi.kharkov.ua/handle/KhPI-Press/57531
dc.language.isoen
dc.publisherOpen Access Library Inc.en
dc.subjectNanocrystalline Structuresen
dc.subjectHydrogenen
dc.subjectAbsorptionen
dc.subjectStorageen
dc.subjectThin Filmsen
dc.subjectIon-Beam Assisted Depositionen
dc.subjectнанокристалічні структуриuk
dc.subjectводеньuk
dc.subjectпоглинанняuk
dc.subjectзберіганняuk
dc.subjectтонкі плівкиuk
dc.subjectіонно-променеве осадженняuk
dc.titleHydrogen Storage in VNx-Hy Thin Filmsen
dc.typeArticleen

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