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Thermodynamic Properties of Mg-Ni-H Compounds Prepared Assisted by a High Magnetic Field

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Abstract:

The Mg2NiH4 hydrogen storage material was prepared by magnetic field assisted combustion synthesis (MACS). It is found that the high magnetic field promotes the formation of Mg2NiH4. The high pressure differential scanning calorimetry (HPDSC) test results indicate that the optimum hydriding and dehydriding onset temperatures are 434 K and 525 K, respectively. However, the peak temperatures associated with LT à HT are similar for all samples. The Vant Hoff results show that a high magnetic field has no obvious effect on the entropies and enthalpies of these compounds.

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Periodical:

Advanced Materials Research (Volume 739)

Pages:

66-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.739.66

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Online since:

August 2013

Authors:

Jing Liu

Keywords:

HPDSC, Hydrogen Storage, Magnetic Field Assisted, Thermodynamic

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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