The Open Fuel Cells Journal




(Discontinued)

ISSN: 1875-9327 ― Volume 6, 2013

On Thermodynamic Stability of Hydrogenated Graphene Layers, Relevance to the Hydrogen on-board Storage


The Open Fuel Cells Journal, 2013, 6: 21-40

Yury S. Nechaev, T. Nejat Veziroglu

International Association for Hydrogen Energy, 5794 SW 40 St. #303, Miami, FL 33155, USA.

Electronic publication date 11/10/2013
[DOI: 10.2174/1875932701306010021]




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 characteristics 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 graphene of composition CH; 3) theoretical single-side hydrogenated graphene of composition C2H - graphone; 4) experimental hydrogenated epitaxial graphene, bilayer graphene and a few layers of graphene on SiO2 or other substrates; 5) experimental and theoretical single-external side hydrogenated single-walled carbon nanotubes, and experimental hydrofullerene C60H36; 6) experimental single-internal side hydrogenated (up to C2H or CH composition) graphene nanoblisters with intercalated high pressure H2 gas inside them, formed on a surface of highly oriented pyrolytic graphite or epitaxial graphene under the atomic hydrogen treatment; and 7) experimental hydrogenated graphite (multigraphene) nanofibers with intercalated solid H2 nano-regions inside them. The main target of the present study is to show a possible breakthrough in solving the problem of hydrogen on-board storage in fuel cell powered vehicles (Nechaev 2011-2012).


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