One type of transparent thermal insulation nanopowder is cesium tungstate. The cesium tungstate nanopowder is an inorganic nanopowder that has the best absorption capability in the near infrared rays so that it has wide applications in many fields such as construction and industry.
There are many ways preparing nano-powders, which can be roughly divided into solid phase method, vapor phase method and liquid phase method. Some are synthesized by two or more methods. However, there are not many methods for preparing cesium tungstate powder. Therefore, people have been trying different methods to prepare cesium tungstate, such as chemical vapor transport method, hot plasma method, high-temperature solid phase reaction method, hydrothermal synthesis method, and solvothermal synthesis, etc. However, these traditional methods are mostly limited to high temperature thermal reduction. In recent years, with the advancement of science and technology, the preparation methods have been continuously developed and improved, and low temperature synthesis technology will become more and more popular.
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