Structure and hydrogen storage properties of the hexagonal Laves phase Sc(Al1-xNix)(2)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F12%3A00385244" target="_blank" >RIV/61389005:_____/12:00385244 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jssc.2012.06.002" target="_blank" >http://dx.doi.org/10.1016/j.jssc.2012.06.002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jssc.2012.06.002" target="_blank" >10.1016/j.jssc.2012.06.002</a>

Result language
angličtina
Original language name
Structure and hydrogen storage properties of the hexagonal Laves phase Sc(Al1-xNix)(2)
Original language description
The crystal structures of hydrogenated and unhydrogenated Sc(Al1-xNix)(2) Laves phases have been studied by combining several diffraction techniques and it is shown that hydrogen is situated interstitially in the A(2)B(2)-sites, which have the maximum number of scandium neighbours. The hydrogen absorption/desorption behaviour has also been investigated. It is shown that a solid solution of hydrogen forms in the mother compound. The hydrogen storage capacity exceeds 1.7 H/f at 374 K, and the activation energy of hydrogen desorption was determined to 4.6 kJ/mol H-2. It is shown that these compounds share the same local coordination as Frank-Kasper-type approximants and quasicrystals, which opens up the possibility of finding many new hydride phases withthese types of crystal structures.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/LM2011019" target="_blank" >LM2011019: CANAM (Center of Accelerators and Nuclear Analytical Methods)</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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