Abstract
It was found that the preparation ratio of the fcc Mg7TiH16 phase on the UHP synthesis was greatly enhanced by adding a small amount of LiAlH4. In addition, reversible hydrogen storage capacity of the sample was significantly increased. The Rietveld refinement results for synchrotron X-ray diffraction (XRD) data indicated that the Li ion would substitute the Mg site in the Mg7TiH16 phase. Differential scanning calorimeter measurements indicated that the LiAlH4 added Mg7TiH16 phase exhibited reversible hydrogen releasing and restoring behaviors under 0.1−0.5 MPa of hydrogen pressure. The reversible hydrogen storage capacities were in the range of 3.8−4 wt % on the pressure−composition isotherms.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
