Graphene plane direction

The allotropes of carbon comprise diamond, which is three dimensional graphite with its graphene planes that are two dimensional Cgo nanotubes, which can be considered as a unit cell of hexagons crystallized in one direction can be termed uni-directional and finally, spheroidal fullerenes, which are zero dimensional, when considered as a carbon sheet wrapped around a point. 

The KCg binary is prepared by the direct reaction of potassium on graphite under vacuum (ref. 9). Due to the electronic transfer to the graphene plane, this compound is a strong reducii agent. If it is allowed to react with a metallic halide MQ (M = Fe,Co,Ni) dissolved in tetrahydrofuran (THF), the reaction occurs spontaneous at room temperature and leads to the formation of metal M° dispersed on graphite ... 

The "split" reflexions of the type ho.o (and hh.o) can be associated with the graphene sheets in the tangent planes perpendicular to the beam direction along... 

Fig. 7.4 Phonon dispersion of graphite from inelastic X-ray scattering along the in-plane high symmetry directions (full circles). The dashed line is a cubic-spline interpolation to the TO-derived branch. The open circles show an ab-initio calculation for graphene, downscaled by 1% (Reprinted with permission from Maultzsch J, Reich S, Thomsen C, Requardt H, Ordejon P (2004) Phonon dispersion in graphite. Physical Review Letters 92 (7) 075501-1-4. Copyright (2004) by the American Physical Society)...

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