TiO2 Coated Ag Nanowire Array Fabricated by Hydrolysis of TiCl4 Aqueous Solution
WANG Ming , ZHANG Jin-lin, ZHANG Jian-fu, ZHAO Dong-liang
Beijing Key Laboratory of Precision Alloys, Research Institute of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, China
Abstract：TiO2 nanoparticles coated Ag nanowire array was fabricated by hydrothermal procedure. The structure of TiO2 coating layer was detected as anatase phase by SAED. The influence of temperature and TiCl4 concentration on the morphology of TiO2/Ag coating structure was studied. It was found that continuous and uniform TiO2 coating layer could be prepared with a 0.1 mol/L TiCl4 concentration. Corrosion of Ag nanowires happened when TiCl4 concentration was higher than 0.1 mol/L. Uniform TiO2 coating layer could be prepared with a certain degree of crystallization at 80 ℃.When the temperature is lower than 80 ℃, crystallization of the coating layer is not obvious. Corrosion of Ag nanowires happened when the temperature is too high.
2014, Vol. 21 
