Self‐organized TiO 2 nanotubes: Factors affecting their morphology and properties

Self‐organized oxide nanostructures grown by controlled anodic oxidation of a metal substrate attracted wide scientific interest due to a broad number of potential applications. The present work gives an overview on growth principles and mechanistic aspects of self‐organized TiO 2 nanotubular layers and related transition metal oxide nanostructures. In particular, key electrochemical factors that control tube geometry and routes to fabricate advanced TiO 2 nanotube geometries and morphologies are discussed.