Cs doped tungsten oxide nanoparticles are well-known as cesium tungsten bronze nanoparticles, which are often used in the preparation of thermal insulation dispersion liquid. And the prepared dispersion liquid is mainly used in the production of transparent heat-insulating glass coating, which is widely applied for heat insulation of automobiles and buildings. Well, do you know how to prepared Cs doped tungsten oxide nanoparticles?
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According to the experts, the cesium tungsten bronze nanoparticles can be prepared using sodium tungstate and cesium carbonate as raw materials and adopting 2-hydroxypropane-1,2,3-tricarboxylic acid (citric acid) as a reducing agent. This preparation method is relatively easy-to-operating and low-cost. The experts also introduced that in the past, the method for preparing Cs-doped WO3 nanoparticles for thermal insulation dispersion was high-temperature thermal reduction method, which required high temperature and reducing atmospheres. Also, it put forwards high requirement to the equipment. In the research of low-temperature soft chemical synthesis of CsxWO3, generally, WCl6 and CsOH are used as raw materials. And the CsxWO3 is synthesized in ethanol solution. Wherein, WCl6 and CsOH are expensive, volatile and hydrolyzed, and are harmful to human body and environment.
