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Type of publication: research article
Type of publication (PDB): Straipsnis recenzuojamoje Lietuvos tarptautinės konferencijos medžiagoje / Article in peer-reviewed Lithuanian international conference proceedings (P1e)
Field of Science: Energetika ir termoinžinerija / Energetics and thermal engineering (T006)
Author(s): Tučkutė, Simona;Lelis, Martynas;Milčius, Darius;Motiejūnienė, Rita
Title: Investigation of Mg-Ti thin films hydriding kinetics
Is part of: CYSENI 2010 : Conference of young scientists on energy issues [elektroninis išteklius], May 27-28 2010, Kaunas, Lithuania. Kaunas : LEI, [2010]
Extent: p. 23-30
Date: 2010
Note: Tomo antraštė: 7th annual conference of young scientists on energy issues (CYSENI 2010), Kaunas, Lithuania, 27-28 May 2010
Keywords: Mg-based hydride;Coupling;Hydrogen storage
Abstract: Magnesium hydride is a promising material for hydrogen storage but the slow hydriding and dehydriding kinetics limit its practical application. Identification of effective catalyst is a subject of great interest in developing MgH2 system as a potential hydrogen storage medium. A thin layer of Ti acts as a catalyst. The main emphasis of this study was to investigate Mg-Ti-H system hydrogenation properties. For this purpose nanocrystalline Mg-Ti films were deposited onto quartz substrates using magnetron co-sputtering technique and hydrogenated at 10 bar H2 pressure in the temperature range from 200 up to 300 °C during 6 h. The synthesised samples were characterized by X-ray diffraction, and surface morphology were observed by means of scanning electron microscopy (SEM).The experimental results show that the growth of the initial hydride layer may be blocked by the surface oxide barrier layer formed during hydrogenation. The growing hydride phase in the bulk generates stresses that induce cracks and holes in the oxide barrier formed during the initial stages of hydrogenation, and hydrogen release
Affiliation(s): Fizikos katedra
Gamtos mokslų fakultetas
Lietuvos energetikos institutas
Lietuvos energetikos institutas,
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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