Journal of Nanomaterials / 2018 / Article / Fig 6

Research Article

Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature

Figure 6

FESEM images of (a) sample I, (b) sample J, (c) sample K, and (d) sample L. The insets of (a)–(d) show the magnified images for the dashed square areas in (a)–(d).