Use this url to cite publication: https://hdl.handle.net/20.500.12259/50908
Publication type
type::text::periodical::journal::contribution to journal::journal article::research article
Type of publication (PDB)
Straipsnis recenzuojamoje Lietuvos tarptautinės konferencijos medžiagoje / Article in peer-reviewed Lithuanian international conference proceedings (P1e)
Author(s)
Lietuvos energetikos institutas
Lietuvos energetikos institutas, milcius@isag.lei.lt
Motiejūnienė, Rita
Lietuvos energetikos institutas
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
Publisher
Kaunas : LEI
Date Issued
2010
Description
Tomo antraštė: 7th annual conference of young scientists on energy issues (CYSENI 2010), Kaunas, Lithuania, 27-28 May 2010
ISSN (of the container)
1822-7554
Other Identifier(s)
VDU02-000009592
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.
Bibliographic Details
6
Coverage Spatial
LT
Language
Anglų / English (en)