Electroless deposition of SnOx–Sb nanocoating in ordered titania pores for enhancing electrical conductivity

  Sn and Sb were separately deposited into TiO2 nanotubes (TNTs) by electroless plating. A more conductive sub-stoichiometric TNT/SnOx–Sb layer was then prepared by controlled annealing. The electrical properties of the TNT/SnOx–Sb electrodes were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. The presence of Sn contributes to the enhanced electrical conductivity. A small amount of Sn greatly improves the energy efficiency of TNT/SnOx–Sb electrodes for the degradation of nitrobenzene by enhancing the conductivity.