Thermodynamics of Hydrogen Desorption from NaMgH3 and Its Application As a Solar Heat Storage Medium
作者： Drew A. Sheppard , Mark Paskevicius , Craig E. Buckley
DOI: 10.1021/CM202056S
关键词:
摘要: NaMgH3 has been considered as a potential hydrogen storage material and is an intermediary phase in number of complex-hydride destabilization reactions. Using careful pressure−composition−isotherm measurements, the equilibrium plateau was shown to be flat with negligible hysteresis. The enthalpy desorption, ΔH, found 86.6 ± 1.0 kJ/(mol H2) entropy, ΔS, 132.2 1.3 J/(mol H2 K), values lower than previously reported. high enthalpy, plateau, lack hysteresis make candidate solar heat medium.
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