Abstract

The presented work sets out to investigate the influence of LiCl and NaCl, the typical by-products of the mechanochemical synthesis of complex metal hydrides such as alanates and boranates, on the kinetics and thermodynamics of the dehydrogenation of Sr(AlH4)2. We found no effect of NaCl on the decomposition pathway of Sr(AlH4)2. Although LiCl does not affect the first dehydrogenation to SrAlH5, it does alter the further decomposition to the final products. Thermodynamic properties such as the heat capacity functions, enthalpies of formation and absolute entropies were determined for Sr(AlH4)2 itself and its decomposition product SrAlH5 within this study.

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