Carbon direct macroscopic shaping

The synthesis of the patterned macroscopic shape consists in the growth of carbon nanotubes in a parallel direction from a fiat substrate surface. This was achieved using a mixture of toluene containing ferrocene compounds or directly with ethylene and steam etching [46-49]. The carbon nanotubes were formed as a thick layer covering the silica reactor wall. The sample could easily be recovered by scratching the dark deposit with a razor blade. 

---