A simple method for synthesizing WO3 nanotubes

作者：Cheng LF; Zhang XT; Chen YH; Liu B; Li YC; Huang YB; Du ZL^*

来源：Chemical Journal of Chinese Universities, 2004, 25(9): 1621-1623.

• tungsten trioxide nanotubes
• AAO template
• (NH4)(2)WO4 solution

Highly ordered tungsten trioxide nano-tube arrays were synthesized by the combination of (NH4)(2)WO4 solution and, anodic aluminum oxide (AAO) templating method. The morphology and the chemical composition. of tungsten trioxide nanotube arrays were characterized by scanning electron microscopy (SEM) transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The results show that the diameter of the tungsten trioxide nanotube arrays is about 165 nm and just equals to the diameter of pores of AAO template, which reveals that the diameter of the tungsten trioxide nanotube arrays is dependable on the,size of the pores in the AAO template. The tungsten trioxide nanotubes are composed by tungsten trioxide nanoparticles formed by reaction (NH4)(2)WO4 -->(550 degreesC) 2NH(3) up arrow + WO3 + H2O up arrow in the heating'process.

• 出版日期2004-9
• 单位河南大学