
Cs doped tungsten oxide nanoparticles may be used to prepare thermal insulation dispersion with excellent near infrared absorbing ability. Wherein, Cs doped tungsten oxide nanoparticles can be synthesized by using sodium tungstate and cesium carbonate as raw materials, and citric acid as a reducing agent under hydrothermal conditions. The obtained nanoparticles are Cs0.32WO3 nano powders with a hexagonal phase structure, which exhibit strong near-infrared absorption performance in the near-infrared region, and the highest absorbance at the wavelength of 1100nm can…