文摘
We report a new chemical reaction between Mg(NH2)2 and LiAlH4 in a molar ratio of 1/1, which releases 8equiv of H under moderate conditions. X-ray diffraction, Fourier transform infrared spectroscopy, and NMRmeasurements revealed that an Al-N bond was established right after the occurrence of the reaction. Nitridesare the final dehydrogenation products. Thermodynamic examination reveals that the hydrogen desorptionfrom the post-ball-milled sample is a mild endothermic process, indicating it could be a potential candidatefor on-board hydrogen storage. The dehydrogenation mechanism in the mechanochemical and heating treatmentswas discussed.