Graphene like layers

Fig. 17 Open-framework architecture of [003(100)2(4,4 -bpy)3] 6HjO DMF. (a) Top view showing the 12 A in diameter hexagonal channels, (b) Side view showing the graphene-like layers pillared through bipyridine ligands (Oo, light blue-, O, red-, N, dark blue C, grey H, white) Reprinted with permission from ref 175. Oopyright 2005, American Ohemical Society...

Intense in situ electron irradiation of particles of carbon soot for tenths of minutes in the electron microscope produces spherical particles consisting of onion-like concentric spherical shells of graphene-like layers [208]. The microscope allows the concentric shell structure to be imaged during its formation. 

Byrne and Marsh (1995) were unable to accept the concept that activated carbon possessed a structure made of graphitic microcrystallites. A major concern was the improbability of graphitic (graphene-like layers) being formed at temperatures <900 °C from organic precursors. 

A close inspection of the edges of the lines of labyrinth (surfaces of the carbon surfaces) indicates a lack of smoothness, the edges being rough. This point is of importance to carbon science because the surfaces of porosity are of imperfect graphene-like layers, with surface irregularities and other defects. 

GRAPHENE-LIKE STRUCTURES OF LAYERED INORGANIC MATERIALS... 

At a laboratory scale, cmitinuous production yields irrai-based particles of 20-50 run at a production rate of >10 g/h. Carbon-encapsulated iron carbide (C/FesC) combines exceptionally high saturation magnetization (140 emu/ g), air stability (up to 200°C), and resistance against acidic dissolution (1 week in 24% HCl). Top graphene-like carbon layer can be covalently functionalized with various linkers to chemically design the particle surface... 

---