Cesium doped tungsten oxide nanopowder may be applied for preparing nano-ceramic dispersion solution, which is more and more popular in recent years. And therefore, the preparation of nano cesium doped tungsten oxide has attracted more and more attention from experts. Some experts have proposed the following preparation method of nano Cs doped tungsten oxide powder, and the specific steps are as follows:

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1.0 The raw material tungsten salt (potassium tungstate) and cesium salt (cesium sulfate) are separately dissolved in deionized water, and the tungsten salt solution is configured into tungstic acid solution through exchanging resin;
2.0 The tungstic acid solution, the cesium salt solution and the reaction solvent (citric acid) are mixed and continuously stirred under a water bath condition of 50°C for 1.5h to obtain the hydrothermal reaction precursor liquid; the mass of the reaction solvent is 1.3 times the mass of tungsten salt and cesium salt;
3.0 The precursor liquid is placed in a closed hydrothermal reaction kettle with a stirring device, and the reaction is performed at 200°C for 10h;
4.0 The hydrothermal reaction precipitate is repeatedly washed with deionized water, dried, pulverized, and calcined to obtain cesium doped tungsten oxide nano powder.

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