《Photoelectrochemical responses of doped and coated titanium dioxide》.pdf

Composites: Part B 52 (2013) 292–302 Contents lists available at SciVerse ScienceDirect Composites: Part B journal homepage: www. /loc ate/compositesb Photoelectrochemical responses of doped and coated titanium dioxide composite nanotube anodes Kai Ren a, Yong X. Gan a,b,⇑, Taurean J. Young a, Zaki M. Moutassem a, Lihua Zhang c a Department of Mechanical, Industrial and Manufacturing Engineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA b Department of Mechanical Engineering, College of Engineering, California State Polytechnic University-Pomona, 3801 W Temple Avenue, Pomona, CA 9 1768, USA c Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA a r t i c l e i n f o a b s t r a c t Article history: Nanostructured photoelectrochemical anodes were made from titanium dioxide nanotubes doped with Received 14 January 2013 various metals including Fe, Cu, Ni, Ag, and added with polyaniline to enhance the photosensitivity. Received in revised form 25 March 2013 The TiO2 nanotubes were obtained through electrochemical oxidation of Ti foil in a glycerol aqueous solu- Accepted 2 April 2013 tion. Electroplating followed by high temperature treatment induced element substitution approach was Available online 13 April 2013 used to achieve doping effect. Transmission electron microscopy and energy dispersive X-ray diffraction analysis were performed to reveal the struc