Nano cesium tungstate is a kind of transparent thermal insulation material, which has high extinction coefficient in the near-infrared region and has little effect on transmission of visible light. And it can be prepared by hot plasma method.
Preparation of Nano Cesium Tungstate by Hot Plasma Method
The ammonium paratungstate (APT) and the alkali metal (Cs) salt were mixed with solid phase interaction, and CsxWO3 was synthesized in Ar and H2 atmosphere using plasma as heat source. The reaction formula is as follows:
xCsR+(NH4)10W12H2O42?4H2O→CsxWO3+10H2O+mCO2+10NH3
Based on inductively coupled thermal plasma technology, it has been found that these CsxWO3 nanoparticles have high purity.
Plasma technology uses part of the ionized plasma generated by the plasma generator to achieve certain industrial production targets. This type of technology has great development prospects as the temperature of the plasma is high, which can provide high-enthalpy work media. And it can produce the materials that cannot be prepared by conventional methods. Also, it has the advantages of controllable atmosphere, relatively simple equipment and simple process.
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