Research Article

Thermodynamic Modeling of Hydrogen Storage Capacity in Mg-Na Alloys

Table 5

Thermodynamic properties of NaMgH3 decomposition from PCI and DSC experiments.

Reaction (2)Reaction (3) (NaMgH3) (kJ/mol)Reference
(kJ/molH2) (J/molH2K) (kJ/molH2) (J/molH2·K)

85.45127.2114154.2−142.44This work
−231**[13]
88 ± 0.9−145*[18]
93.9 ± 6116.2 ± 9102.2 ± 4125.9 ± 6−145*[15]
94 ± 15140 ± 22116 ± 2165 ± 3−152*[17]
92123[27]
86.6 ± 1132.2 ± 1.3117168.2−145.1*[88]

The values are (re)calculated in this work using values reported in the literature; **data obtained by DSC measurements.