Název:
HYDROGENATION OF CHOSEN MgMXN INTERMETALLICS (X=Al, Ga, In, Si, Sn)
Autoři:
Čermák, Jiří ; Král, Lubomír ; Roupcová, Pavla Typ dokumentu: Příspěvky z konference Konference/Akce: NANOCON 2016. International Conference on Nanomaterials - Research and Application /8./, Brno (CZ), 20161019
Rok:
2017
Jazyk:
eng
Abstrakt: Hydrogen sorption in chosen intermetallics MgmXn (Mg17Al12 , Mg2Ga, mixture of beta-Mg-In phases, Mg2Si and Mg2Sn) formed by magnesium and elements from the 13 th (X: Al, Ga, In) and 14 th (X: Si, Sn) groups was studied between the room temperature and T = 350 °C. Hydrogen pressure p varied from 10-3 MPa to 6 MPa.\nHydrogen solubility in alpha phase (solid solution of hydrogen in MgmXn before the hydride phase was nucleated) was close to hydrogen solubility in pure Mg. Concentration cH of hydrogen solved in Mg m X n depended linearly on pressure p , dependence of cH on temperature T was relatively weak. MgH2 was the main hydrogen storage phase in all the compounds MgmXn . Nucleation of MgH2 at 350 °C was observed at pressure above approximately 1 MPa in Mg17Al12 and above 2 Ma in other compounds. Maximum values of c H in hydride-containing compounds MgmXn detected at T = 350 °C depended on the stability of MgmXn .
Klíčová slova:
Hydrogen; hydrogen solubility; hydrogen storage; Mg alloys; MgH2 Číslo projektu: LQ1601 (CEP) Poskytovatel projektu: GA MŠk Zdrojový dokument: NANOCON 2016. 8th International Conference on Nanomaterials - Research and Application. Conference Proceedings, ISBN 978-80-87294-71-0
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/11104/0275040