Název:
Hydrogen Storage Capacity of Mg/Mg2Ni Eutectic Doped with Elements from Groups XIII and XIV
Autoři:
Čermák, Jiří ; Král, Lubomír Typ dokumentu: Příspěvky z konference Konference/Akce: Metal 2012, Brno (CZ), 2012-05-23 / 2012-05-25
Rok:
2012
Jazyk:
eng
Abstrakt: In the present paper, the chemical composition of Mg-8.5 at.% Ni-2.7at.%X alloys (X – elements of the 13th and 14th groups) as prospective hydrogen storage was investigated. Experimental alloys were studied in three states: (i) after stabilization anneal, (ii) after stabilization anneal and hydrogen charging, and (iii) after stabilization anneal, hydrogen charging and hydrogen desorption. It was ascertained that a ratio of concentration of X in two principal phases – Mg2NiH4(-X) and MgH2(-X) – was a decreasing function of the ionization potential of X. The stronger the preference of X for Mg2NiH4-X phase, the higher the hydrogen storage capacity of Mg-Ni-X alloy was. For X = In, the hydrogen storage capacity was slightly higher than the capacity of an un-alloyed binary eutectic Mg-Ni alloy.
Klíčová slova:
hydrogen storage; hydrogen storage capacity; Mg alloys; ternary alloys Číslo projektu: CEZ:AV0Z20410507 (CEP), ED1.1.00/02.0068, GA106/09/0814 (CEP), GAP108/11/0148 (CEP) Poskytovatel projektu: GA MŠk, GA ČR, GA ČR Zdrojový dokument: METAL 2012 Conference Proceedings, ISBN 978-80-87294-31-4
Instituce: Ústav fyziky materiálů AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0007499