Supplementary Information
It contains additional DOS and pDOS plots for the defective silicence
systems, relaxed configurations of single vacancy and Stone-Wales
defective graphene and Li decorated defective graphene structures,
relaxed configurations of H2 adsorption onto pristine
silicene, Differential charge diagrams of Li decoration on SV silicene
and SW silicene, pristine graphene and Li decorated SW graphene along
with the average Li binding energy in all the lithium decorated systems.