Abstract
The present analytical study using thermodynamic methods for analysis of data from a number of theoretical and experimental works, devoted to the current problem of thermodynamic stability and related thermodynamic character- istics of the following graphene layers systems: 1) double-side hydrogenated graphene of composition CH - theoretical graphane (Sofo et al. 2007) and experimental graphane (Elias et al. 2009); 2) theoretical single-side hydrogenated gra- phene of composition CH; 3) theoretical single-side hydrogenated graphene of composition C2H - graphone; 4) experi- mental hydrogenated epitaxial graphene, bilayer graphene and a few layers of graphene on SiO2 or other substrates; 5) ex- perimental and theoretical single-external side hydrogenated single-walled carbon nanotubes, and experimental hy- drofullerene C60H36; 6) experimental single-internal side hydrogenated (up to C2H or CH composition) graphene nanoblis- ters with intercalated high pressure H2 gas inside them, formed on a surface of highly oriented pyrolytic graphite or epi- taxial graphene under the atomic hydrogen treatment; and 7) experimental hydrogenated graphite (multigraphene) nanofi- bers with intercalated solid H2 nano-regions inside them. The main target of the present study is to show a possible break- through in solving the problem of hydrogen on-board storage in fuel cell powered vehicles (Nechaev 2011-2012).
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