Surface modification of multi-walled carbon nanotubes by O2 plasma

The surface modification of multi-walled carbon nanotubes (MWCNTs) by O2 plasma was carried out in this study. In order to achieve a relatively homogeneous treatment of MWCNTs powder, a rotating barrel fixed between the two discharge electrodes was used. The effect of plasma treatment parameters, such as power, time, and positions of samples (inside and outside the barrel), on the morphology and structure of MWCNTs surface was systematically …