[P] P130~P143 Energy and Related Materials

[P143] Hydrogen Absorption and Desorption Reactions of Mg Composited with Fe-Cr-Mn Sigma Phase

○Naoya Kurata¹, Kohta Asano², Mitsuo Notomi¹ (1. Meiji University, 2. AIST)

Keywords:

Mg,Sigma-phase,Ball milling,Hydrogenation and dehydrogenation properties,Pressure-Composition isotherms

Magnesium (Mg) has a high hydrogen storage capacity but requires a high temperature for hydrogen desorption. In this study, Mg was composited with a Fe–Cr–Mn σ phase to investigate the effect of the σ phase on the hydrogen absorption and desorption properties.