Multi wall carbon nanotubes (MWCNTs) were grown directly on copper
substrate and in the acetonitrile / de-ionized water (1% v/v) electrolyte of the
electrochemical cell using different growth temperatures.The effects of substrate
temperature and growth time over the MWCNTs structure were investigated.
MWCNTs were characterized by Scanning Electron Microscopy (SEM), Low
Magnification Transmission Electron Microscopy (LMTEM) and Atomic Force
Microscopy (AFM). TEM characterization indicate a transition from non growth at
288K to negligible growth at 308K then to excellent growth at 338K, AFM
characterization indicate a Gaussian distribution growth on Cu substrate with
maximum percentage to 110 nm diameter.