rGO      reduced Graphene Oxide Models  Box 27x25x30 ~300 Atoms	
   H-1_rGO  rGO treated with atomic H at 1 bar and 300 K
   H-2_rGO  "		     	      	 2 bar     " 	
   H-4_rGO  " 				 4 bar     "
   H-8_rGO  " 				 8 bar     "
   
All simulation are performed with LAMMPS[33].   
Atomistic MD calculations are performed with Reax-
force filed with a 0.1 fs integration time step.
Atomic charges were dynamically evolved using the charge equilibration (QEq)
method. The models are generated starting from a rectangular graphene
sheet of 264 C atoms, with periodic boundary condi-
tions in a supercell of 27×25 Ang. in the xy plane and
30 Ang. along z direction.