Highly oriented pyrolytic graphite step edges

Figure 4 Schematic illustrating the orientated growth of Api-40 fibrils along the hydrophilic step edges of highly orientated pyrolytic graphite (HOPG) in preference to assembly on the hydrophobic basal plane surface. Copyright (Losic, Martin et al., 2006). Reprinted with permission of John Wiley Sons, inc.

Boxley, C. J. White, H. S. 2003. Electrochemical deposition and reoxidation of Au at highly oriented pyrolytic graphite. Stabilization of Au nanoparticles on the upper plane of step edges. J. Phys. Chem. B 107 451 58. 

---