Evidence for the existence of β-Na3AlH6 : Monitoring the phase transformation from α-Na3AlH6 by in situ methods

Evidence for the existence of β-Na3AlH6 : Monitoring the phase transformation from α-Na3AlH6 by in situ methods

The phase transformation of alpha-Na3AlH6 to beta-Na3AlH66 was characterized by in situ DSC and high-temperature X-ray diffraction methods. The detection of the phase transformation from the alpha to the beta-polymorph requires rapid heating rates and a very fast data acquisition. The influence of t...

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Veröffentlicht in:Journal of alloys and compounds 2005-08, Vol.398 (1-2), p.228-234
Hauptverfasser: WEIDENTHALER, C, POMMERIN, A, FELDERHOFF, M, SCHMIDT, W, BOGDANOVIC, B, SCHÜTH, F
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Physics
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Zusammenfassung:The phase transformation of alpha-Na3AlH6 to beta-Na3AlH66 was characterized by in situ DSC and high-temperature X-ray diffraction methods. The detection of the phase transformation from the alpha to the beta-polymorph requires rapid heating rates and a very fast data acquisition. The influence of the preparation method on the stability of both polymorphic forms most probably originates from different particle sizes of the parent samples.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2005.02.021