NANOPARTICLE MAGNESIUM HYDRIDE, PREPARATION METHOD THEREOF AND USE OF SAME

摘要

The invention relates to the preparation of a material that is formed by nanoparticles of magnesium hydride, using the gas-phase condensation method, and to the use thereof as a hydrogen storage and transport system. According to the invention, the synthesis of the particles comprises the evaporation of the magnesium in a low-pressure inert gas atmosphere followed by an in situ hydrogen loading treatment. The magnesium hydride thus synthesised is characterised in that it comprises uniformly-distributed particles of nanometric size, having a low degree of aggregation and good crystallinity. The aforementioned microstructural aspects (size, morphology and crystallinity) are essential for improving the kinetic performance of the hydrogen adsorption/desorption steps in relation to a magnesium hydride prepared using the existing alternative methods in which said characteristics cannot be controlled so precisely.