Nano tungsten trioxide for glass dome thermal insulating film can be prepared by hydrothermal/solvothermal method. The prepared tungsten trioxide nano powder has a small particle size with high purity. And it is easy to control morphology. Also, the hydrothermal/solvothermal method has also become more and more popular due to its advantages such as low cost, environmental protection, and simple operation. And therefore, it has gradually become one of the main methods for the preparation of tungsten oxide, with different dimensions and morphologies.
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In the preparation process, the experts often control the morphology of tungsten oxide by selectively using different types of additives, or by changing experimental conditions and parameters, and even through multiple doping. In addition, the experts also introduced that the diversification of the preparation process leads to the diversity of product growth processes and reaction mechanisms, such as isotropic growth, preferential growth, supersaturation drive, and self-assembly.
