Our findings concerning the details of the proton diffusion mechanism on graphanol indicate possible approaches to decreasing proton diffusion activation energies. For instance, missing OH groups can be introduced to lower the local OH rotational barrier without impacting the hopping barrier. In fact, actual materials are likely to exhibit missing OH groups and, given that the percolation threshold is 0.5, proton conductivity can still take place even when nearly half of the OH groups are replaced by H atoms. Another possibility is to pattern the surface with alternating bands of OH and H functionalizations, which is likely to exhibit lower barriers for OH rotation at the band edges. We note that Walton et al. have demonstrated the ability to control spatial functionalization of graphene, indicating the feasibility of producing banded graphanol.