Nano CsxWO3 powder, or nano grain size cesium tungsten bronze powder, may be applied for preparing infrared thermal insulation nano material. And the prepared heat insulating material will have the best performance, excellent optical performance. In other words, the heat-insulating material of nano cesium tungsten bronze is very strong in shielding the near infrared under the condition of ensuring high visible light transmittance. Thus, the heat insulation material of nano CsxWO3 is more and more popular in people. And therefore such thermal insulation material has important research significance in the field of building energy-saving glass.
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As you may have known, the nano grain size tungsten bronze synthesized at low temperature is mostly of hexagonal structure. And the radius of tungsten bronze hexagonal tunnel is generally considered to be 0.163nm. Compared with other alkali metal ions, Cs+ (ion radius: 0.169nm) is close to the tunnel radius of tungsten bronze and slightly larger than the radii of the tunnel radius is more easily filled into the tungsten bronze tunnel, so the cesium tungsten bronze has excellent performance.
