ABSTRACT
This chapter investigates the structural and morphological features of self-aligned titanium oxide nanotube arrays grown by electrochemical anodization in different electrolytic media with variation in the potentiostatic anodization voltage and temperature of electrolyte. The different anodizing conditions employed lead to different stages of the surface structures of nanotubular TiO2, where highly self-aligned nanotube arrays are formed at low anodic potentials as a result of the electrochemical etching, as can be seen from the top-view scanning electron microscopy images. Low-temperature anodization appears to inhibit the formation of nanotubular structure. The semiconducting and photoelectrochemical properties exhibited by the amorphous structure of the nanoporous anodic TiO2 are very promising for their application in the designing of photo-catalyst and solar-cells-based devices such as in the construction of hydrogen storage and sensor devices.
