Research Regarding Molybdenum Flakes’ Improvement on the Hydrogen Storage Efficiency of MgH2

As an efficient hydrogen storage material, magnesium hydride (MgH2) has a high capacity of 7.6 wt%. However, its performance deteriorates because thermodynamic and kinetic temperatures the fast agglomeration nanocrystals during uptake release process. The exploration catalysts is popular, but currently challenging, topic. Therefore, we successfully prepared flake-like molybdenum (Mo) doped them into MgH2 to enhance properties. We found that incorporation 7wt%Mo could reduce starting desorption temperature by approximately 100 °C. In addition, 7wt%Mo-doped desorb almost all H2 within 20 min at 325 °C isothermal condition. For hydrogenation, MgH2-7wt%Mo absorb 5 wt% 250 condition with pressure 3 MPa. composite maintain 98% initial end 22 cycles, presenting good cycling performance.