Hydrogen accumulation in graphite and etching of graphite on hydrogen desorption

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

“…E graphene )  0.1 TPa) in the expanded regions (domains or grains) of the material [5]. This analytical result in this study is consistent with the analytical results of the related data considered from [15][16][17][18][19][20][21], relevant to the possibility of the existence of hydrogenated graphane*-like nanostructures possessing of a Young's modulus value close to that of graphene (E graphane*  E graphene = 1.0 TPa).…”

“…In [15], atomic hydrogen accumulation in HOPG samples and etching their surface on hydrogen thermal desorption (TD) have been studied by using a scanning tunneling microscope (STM) and atomic force microscope (AFM). STM investigations revealed that the surface morphology of untreated reference HOPG samples was found to be atomically flat ( Fig.…”

“…experimental single-internal-side hydrogenated graphene nanoblisters possessing of a very high Young's modulus (with intercalated into them H 2 gas of a high pressure) formed on the surface of highly oriented pyrolytic graphite (HOPG) or epitaxial graphene under the definite atomic hydrogen treatment ( [15][16][17][18][19][20][21]); 7). experimental hydrogenated graphite nanofibers possessing of a high Young's modulus (with intercalated into them solid H 2 ) that is relevante to the problem of the hydrogen on-board storage [18][19][20][21].…”

“…Obviously, this is some specific sp 3 -like hybridization. Such model is taken into further consideration in this analytical study [10][11][12][13][14][15][16][17][18][19][20][21].…”

Hydrogen intercalation of graphene grown on 6H-SiC(0001)

“…In the present work, we do further studies of this hydrogenation mechanism using scanning tunneling microscopy (STM), low energy electron diffraction (LEED), core-level photoelectron spectroscopy (PES), angle resolved photoelectron spectroscopy (ARPES) and X-ray photoelectron 3 emission microscopy (XPEEM). An earlier STM study of graphite exposed to atomic hydrogen [10] showed that hydrogen intercalated and was stored between the graphite layers and resulted in the formation of graphene blisters. Recent STM studies of atomic hydrogen exposures on graphene grown on SiC(0001) [11] and Ir(111) [12] reported that hydrogen adsorbed on the graphene surface but did not penetrate through the graphene layer into the substrate interface.…”