Nano CsxWO3 Applied for Infrared Thermal Insulation Nano Material

The near-infrared shielding property of nano CsxWO3 for preparing infrared thermal insulation nano material is related to the crystallinity of CsxWO3 powder. After numerous experiments, the experts discovered this conclusion. Moreover, they also found that the Cs0.32WO3 sample obtained at a Cs/W ratio of 0.5 has a high concentration of free carriers. At this time, the crystallinity is the highest and the near-infrared shielding performance is optimal.

The near-infrared shielding performance is slightly lower when the Cs/W ratio is 0.6. It may be due to the lower crystallinity and the excessive addition of Cs2CO3, resulting in a decrease in reactivity and a W defect. In addition, since the ionic radius of Cs+ is 0.17nm and the size of tungsten bronze hexagonal tunnel is 0.163nm, the size of the two is similar. So, Cs+ can be stably embedded in the hexagonal tungsten bronze tunnel, and will not be easily lost in the formed cesium tungsten bronze structure. And therefore the chemical properties and physical properties of the obtained Cs0.32WO3 nanopowder are relatively stable. The reason why experts pay attention to these features of CsxWO3 nanopowder is that the heat insulating materials made of CsxWO3 may be used in the field of architectural heat insulation glass. With the promotion of energy conservation and emission reduction policies, this kind of new heat insulation materials is expected to be promoted.

More details, please visit:
http://www.tungsten-powder.com/cesium-tungsten-bronze-chinatungsten.html

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