Characterization of Multinanoporous Pt-TiO<sub>2</sub> Thin Films Fabricated by a Three-Step Electrochemical Technique

Abstract

In the present investigation, a three-step electrochemical as a novel method has been applied to fabricate multinanoporous thin film electrodes of pure TiO 2 and the doped Pt-TiO 2 (of approximately 15 nm) from the titanium sheet using sulfuric acid as electrolyte and chloroplatinic acid as platinum dopant precursor. Characterization techniques so far discussed in this work revealed that the fabricated products corresponded to pure TiO 2 and to the doped Pt-TiO 2 respectively. The prepared Pt-TiO 2 thin film electrodes have photoresponse to visible light, which indicates a new possibility for improving intrinsic TiO 2 photoresponse.