Molten-salt synthesis of tungsten oxide nanotubes: Morphological and gas sensitivity

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（3）
• 页码范围: 335-338
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11434-007-0507-3

摘要

A very simple molten-salt method was used to synthesize WO3 nanotubes at moderate temperature (600℃). The outer and inner diameters of the WO3 nanotubes were about 100 nm and 30 nm,with a length of dozens of micrometers. TEM and XRD analyses showed that the WO3 nanotubes were single crystal, and had monoclinic structure with the axes preferentially aligned along the [011] direction. The photoluminescence and the gas sensitivity of the nanotubes had been tested, showing that the prod-ucts very well responded to acetone at 340℃.