Research Article

Synthesis and Mechanical/Electrochemical Characterization of TiO2 Nanotubular Structures Obtained at High Voltage

Figure 4

Calculation of the superficial area: (a) dimensions of the nanotube. (b) Total inner area of each nanotube. (c) Nanotubes present in 1 μm2. (d) Inner area of 25 tubes. (e) Area of 25 upper holes. (f) Total superficial area free of holes. (g) Sum of all the areas (inner and superficial).
(a)
(b)
(c)
(d)
(e)
(f)
(g)