Catalyst preparation with ball milling for catalytic synthesis of coiled carbon nanotubes

The aim of our experiments was the production of helically coiled carbon nanotubes selectively. The influence of catalytic particles prepared by ball milling (dry and wet method) was investigated on the growth. of coiled carbon nanotubes under conditions. For qualitative characterization of carbon deposit on the surface, the products were imaged by transmission and scanning electron microscopy (TEM, SEM). The activity of each catalyst sample was characterized by carbon yield.