The application discloses a kind of catalysts for
hydrogen storage material and its preparation method and application, belong to
hydrogen storage material and its preparation technical field.The present application is to solve the problems such as high
dehydrogenation temperature of existing
magnesium-based
solid hydrogen storage material and slow low-temperature
kinetics.The present application is prepared by using
nickel chloride hexahydrate,
acetylacetone manganese, polyether P123, polyether P127,
dopamine hydrochloride, 1,3,5-trimethylbenzene and
ammonia as raw materials to obtain carbon as carrier wrapped with elemental Ni
nanoparticle catalyst with a large number of edge dislocations, and is applied to Mg-based
hydrogen storage material by ball milling method.The introduced
dislocation has a
dual role: not only directly accelerates the dissociation of H2 molecule, but also indirectly improves the activity of catalytic phase (Mg2NiH4 / Mg2Ni).The preparation process of the composite
hydrogen storage material provided by the present application is simple and mature, and the raw materials are cheap and easy to obtain, only a small amount of MNC needs to be added to greatly improve the
hydrogen storage performance of Mg, and it is convenient for large-scale industrial production.