Changes in Phase Composition of NaAlH4+FeCl2 Complex Hydride Exposed to Air

0354060 - ÚFM 2011 RIV US eng C - Conference Paper (international conference)
Roupcová, Pavla - Schneeweiss, Oldřich
Changes in Phase Composition of NaAlH4+FeCl2 Complex Hydride Exposed to Air.
Mössbauer Spectroscopy in Materials Science - 2010. Melville, New York: American Institute of Physics, 2010 - (Tuček, J.; Miglierini, M.), s. 115-119. AIP Conference Proceedings, Vol. 1258. ISBN 978-0-7354-0806-7. ISSN 0094-243X.
[MSMS 10 - Mossbauer Spectroscopy in Materials Science 2010. Liptovský Ján (SK), 31.01.2010-05.02.2010]
R&D Projects: GA MŠMT 1M0512; GA ČR GP106/09/P556
Institutional research plan: CEZ:AV0Z20410507
Keywords : Hydrogen storage materials * Mössbauer Spectroscopy * X-ray diffraction
Subject RIV: BM - Solid Matter Physics ; Magnetism

Phase composition in AlNaH4 doped with FeCl2 was studied by Mossbauer spectroscopy and X-ray diffraction and stabilities in Ar and air were compared. The results show that the hydride disappeared during the exposition to air. The major sodium alanate hydride traps gaseous impurities (O2, H2O and CO2) and transforms to Na2CO3 and Al(OH)(3).
Permanent Link: http://hdl.handle.net/11104/0193142