Surface Morphology and Growth of Anodic Titania Nanotubes Films: Photoelectrochemical Water Splitting Studies

Figure 5

Potentiostatic plot of photocurrent density for different surface morphologies of anodic TiO₂ photoanode in 1 M KOH solution with 1 wt% of EG under interrupted illumination, (a) nanotubes, (b) nanoporous, and (c) compact oxide layer.