Preparation and electrochemical capacitance of Me double hydroxides (Me = Co and Ni)/TiO2 nanotube composites electrode

In this paper, Me double hydroxides (Me=Co and Ni)/TiO2 nanotube composites were synthesized by a simple chemical co-precipitation method. Electrochemical properties of the composites were examined by cyclic voltammetry, galvanostatic and impedance measurements. The highest specific capacitance values of 1053 F/g could be achieved with Me double hydroxides loaded on the TiO2 nanotube, which was comparable to that of hydrated ruthenium oxide. (C) 2005 Elsevier Ltd. All rights reserved.