System H2 Adsorption energy (eV)
Li-Decorated SV Silicene (Present Study) -0.388
Li-Decorated SW Silicene (Present Study) -0.352
Fe-Decorated SV 5566 Phosphorene [56] -0.138
DV 585 Ca Decorated Graphene [57] -0.133
Al Decorated Graphene [58] -0.182
Ca decorated Silicene [59] -0.370
Li Decorated Penta Silicene [44] -0.354