Interaction of hydrogen with an Mg–Al alloy
作者： A. Andreasen , M.B. Sørensen , R. Burkarl , B. Møller , A.M. Molenbroek
DOI: 10.1016/J.JALLCOM.2005.01.119
关键词: Hydrogen storage 、 Activation energy 、 Dehydrogenation 、 Analytical chemistry 、 Alloy 、 Powder diffraction 、 Intermetallic 、 X-ray crystallography 、 Nuclear chemistry 、 Hydrogen 、 Chemistry
摘要: Abstract The interaction of hydrogen with an Mg–Al alloy pre-exposed to air have been studied in situ time resolved X-ray powder diffraction. Phase fractions as a function are derived from series consecutive diffraction patterns allowing kinetic analysis. apparent activation energy for dehydrogenation the is found be 160 kJ/mol. This not significantly higher than pure and fully activated Mg. It suggested that addition Al improves resistance towards oxygen contamination.
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