Cesium tungsten bronze for heat shielding material can be prepared by a hydrothearmal method under mild conditions. It is worth noting that other alkali metal tungsten bronzes such as (NH4)xWO3, RbxWO3 and KxWO3 could also be selectively synthesized by a similar route. Thus, this novel and efficient method could provide a potential mild route to selectively synthesize various tungsten bronze on‐dimensional nanomaterials.
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For example, some experts have successfully realized the large‐scale synthesis of single‐crystal CsxWO3 tungsten bronze nanowires by a hydrothearmal method under mild conditions. Uniform Cs0.33WO3 nanowires with diameters of 5–25 nm and lengths of up to several micrometers are obtained. It is found that the morphology and crystallographic forms of the final products are strongly dependent on the sulfate and citric acid, which may act as structure‐directing and soft‐reducing agent, respectively. Some other influential factors on the growth of cesium tungsten bronze nanowires, such as temperature and reaction time, are also discussed.
