Influence of Anode Area and Electrode Gap on the Morphology of Nanotubes Arrays
Figure 3
FE-SEM images of the surface morphology of TiO2 nanotube arrays formed in ethylene glycol containing 0.4wt% NH4F and 5wt% H2O electrolyte at different voltages for 1 h. (a) 20 and (b) 30 V.
