Abstract
In this study, a simple route for the synthesis of hierarchical W(18)O(49) assembled by nanowires is reported. The morphologies and formation of W(18)O(49) single-crystal could be controlled by changing the concentration of WCl(6)-ethanol solution. This synthesis strategy has the advantages that the hierarchical W(18)O(49) microspheres could be economic synthesized at 180 °C without adding additives. Furthermore, efficient optical absorption properties in ultraviolet, visible and near-infrared region were obtained for the hierarchical W(18)O(49) microspheres comparing with nanowires. These results will further promote the research of tungsten-based oxide nanomaterials.