Hydrogen storage properties of FeTi1.3+x wt%Mm (x=0.0, 1.5, 3.0, 4.5, 6.0) hydrogen storage alloys

In this paper, the hydrogen storage properties of FeTi1.3+x wt%Mm (x=0.0, 1.5, 3.0, 4.5, 6.0) hydrogen storage alloys, including the activation characteristics, pressure-composition isotherms and hydrogen storage capacities, have been investigated systematically. The results indicate that the activation characteristics of an FeTi alloy modified with excess Ti and a small amount of Mm has been improved markedly. The alloys absorb a noticeable amount of hydrogen after a short period of incubation time at room temperature without any previous thermal treatment. Hydrogen storage properties of modified alloys vary with the content of Mm and the reaction temperature.