ABSTRACT
Graphene, a nanomaterial represented by a single atomic layer of planar carbons, continues to attract widespread research interest due to its remarkable electronic and structural properties. Chemical modication of graphene that includes attachment of atomic hydrogen to selected carbon sites or all carbon sites correspondingly produces partially hydrogenated graphene (PHG) or fully hydrogenated graphene (graphane). H chemisorption is accompanied by transformation of carbon from sp2 to sp3 hybridization, resulting in a relaxation of the carbon atom toward the hydrogen atom. In this chapter, we reveal different approaches used for hydrogenation of graphene, and various experimental techniques employed for the characterization of structures, dehydrogenation, and important properties of hydrogenated graphene. We outline four isomeric single-sheet graphanes. Theoretical and experimental studies focusing on the feasibility of single-sided hydrogenated graphene at both low and high hydrogen coverage are delineated. We discuss the electronic and mechanical properties of graphane and PHG. The results of vibrational spectra and nuclear magnetic resonance (NMR) data from computational studies are provided. We also highlight the recent studies of experimentally known uorographene, partially hydrogenated graphene (C4H), graphane nanotubes, and bilayer graphane. As an emerging and important eld, the fully hydrogenated
derivative of graphene (called graphane) and PHG have many potential applications and deserve detailed review of their characteristics and further comprehensive studies.
