Fabrication of self-organised highly ordered titanium oxide nanotube arrays by anodic oxidation and characterisation. (6th July 2010)

• Record Type: Journal Article
• Authors: Mohammadpour, Raheleh; Ahadian, Mohammad Mahdi; zad, Azam Iraji; Taghavinia, Nima; , Abol Ghasem Dolati
• Is Part Of: International journal of nanomanufacturing. Volume 5:Number 3/4(2010)
• Page Start: 297
• Page End: 309
• Publication Date: 2010-07-06
• Subjects: TiO2 -- titanium oxide -- nanotube arrays -- anodic oxidation -- characterisation -- photoelectrochemical -- photocurrent response -- potentiodynamic polarisation -- electrochemical impedance spectroscopy -- nanotubes -- nanotechnology; Nanostructured materials industry -- Periodicals; Nanotechnology -- Periodicals; 620.505
• Languages: English
• ISSNs: 1746-9392

Abstract

Self-organised and vertically oriented titanium oxide nanotube array (TNTA) has been synthesised by potentiostat anodisation of Ti foil in fluoride-based electrolyte. By varying the anodisation voltage from 8 V to 24 V it was possible to gradually change the topologies of nanotubes. The size of TNTAs was measured using SEM images and also determined based on a non-destructive optical method. In addition, photoelectrochemical properties of nanotubular TiO2/Ti electrodes were examined by anodic photocurrent response, potentiodynamic polarisation measurements and electrochemical impedance spectroscopy. A general equivalent circuit model was proposed for photoelectrochemical system consists of anodic nanotubular TiO2 thin film electrode and test solution.