Review on hydrogen absorbing materials—structure, microstructure, and thermodynamic properties

Hydrogen is a promising renewable fuel for transportation and domestic applications. Many systems have been investigated in order to improve the maximum hydrogen storage capacity (reversible), high kinetics, moderate equilibrium pressure and/or decomposition temperature and better cyclability. In this paper, a review of studies related to stability of Zr-based Laves phase system as well as in situ neutron diffraction investigation, the kinetics of TiFe, surface treatment of LaNi5 system, mechanically alloyed Mg-based hydrides and graphite nanofibres are reported.