Synthesis of tungsten oxide nanowires

Tungsten oxide nanowires have been prepared by heating a tiny tungsten wire partly wrapped with melted born oxide (B2O3) vitreous powder at 1600 °C in nitrogen atmosphere. The nanowires exhibit a well crystallized one-dimensional structure with 10–30 nm in diameter and 2–5 μm in length. A monoclinic crystalline structure could be established by high-resolution transmission electron microscopy study.