Hydrogen Desorption from the NaNH2-MgH2 System
Abstract
Ball-milled sodium amide and magnesium hydride (NaNH2:MgH2 = 1:1 molar ratio) desorbs 3.3 wt % of hydrogen between 70 and 335 °C with three desorption events. X-ray diffraction indicates that the hydrogen desorption is associated with two unidentified magnesium-containing phases. Fourier transform infrared spectroscopy indicates that these two phases correspond to an imide and nitride, respectively. Analysis of the desorption products shows a large excess of NaH and MgH2 and that optimizing the starting reagents will increase both the kinetics and the amount of hydrogen desorbed from the system below 165 °C.
Citation
Sheppard, Drew A. and Paskevicius, Mark and Buckley, Craig E. 2011. Hydrogen Desorption from the NaNH2-MgH2 System. The Journal of Physical Chemistry C 115: pp. 8407-8413.
Source Title
The Journal of Physical Chemistry C
ISSN
School
Department of Imaging and Applied Physics
Collection
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