颗粒学报（英文版）
顆粒學報（英文版）
과립학보（영문판）
CHINA PARTICUOLOGY
2011年
5期
517-521
,共5页
Plasma arc gas condensation%Titanium oxide%Tungsten oxide%Nanoparticle%Nanorods
Various tungsten oxide-based nanomaterials have been prepared by a modified plasma arc gas condensation technique without the use of catalysts or substrates.These products could be obtained by controlling the processing parameters during experiment.All the as-obtained samples were characterized by field emission gun scanning electron microscopy,high-resolution transmission electron microscopy,and Xray diffraction techniques.The results revealed that as-prepared tungsten oxide nanomaterials (WO3,W19O55 and W5O14 ) with different phases and morphologies could be obtained by decreasing the oxygen content in the chamber.In addition,W18O49 nanotubes and nanorod bundles were fabricated by controlling the Ar/O2 ratio under He plasma gas.W18O49/TiO2 core-shell nanoparticles were also prepared by evaporating a dual target.The experimental results showed that the present technique is unique and feasible for the fabrication of nanomaterials for use in different applications.
