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Cesium tungsten bronze nanopowder is a type of near infrared shielding material that can shield most of the solar radiation. The solar radiation is mainly ultraviolet (in the wavelength range of 200~380nm) and near-infrared radiation (in the wavelength range of 780~2500nnm). Cesium tungsten bronze (CsxWO3) is a mixture of hexavalent tungsten (W6+) and pentavalent tungsten (W5+). The W5+ makes the CsxWO3 more reducible. In CsxWO3, Cs+ is filled in the void formed by WO3. Therefore, cesium tungsten bronze crystals are…

Nano Cs0.33WO3 is a type of infrared thermal insulation nano material, which has high-efficiency near-infrared shielding performance. Meanwhile, it has high transmittance of visible light. It means that nano Cs0.33WO3 powder can shield most infrared rays while guarantees day lighting. However, since CS0.33WO3 particles are difficult to disperse in the solution, it is necessary to find a way to disperse the CS0.33WO3 particles in the solution to achieve the target of heat insulation. For the Cs0.33WO3 particles dispersed in the…

Nano cesium tungsten bronze is a kind of infrared thermal insulation nano material. It is also a kind of tungsten bronze material with rich structure. Tungsten bronze, MxWO3, can be doped with many kinds of positive ions, so that it has many excellent properties such as excellent catalytic performance, optical properties, high electrical conductivity, and excellent electrotransport properties. And therefore, it may be applied to many fields such as superconducting materials, thermal insulation materials and photoelectric materials. When M (the…

Cesium tungsten bronze is a type of infrared thermal insulation nano material, which can shield near-infrared light. Inside the metal, free electrons may be considered as static, and a large number of free electrons form plasma with natural vibration frequency. When the natural frequency is close to the frequency of the incident light, acute coupling occurs to form plasma wave. Then, the energy of the incident light is largely absorbed by metal as the plasma waves are in the process…

Cesium tungsten bronze nano powder, as a type of infrared thermal insulation nano material, is a raw material for preparing transparent heat insulation coating. The transparent heat insulation coating is mainly composed of a resin and a type of transparent semiconductor material (cesium tungsten bronze, etc.). These transparent semiconductor materials all have excellent optical properties. In other words, they have strong near-infrared shielding performance and high transmittance of visible light. Based on the optical performance of such coatings, they have…

CsxWO3, or Cs-doped tungsten bronze, as a kind of infrared thermal insulation nano material, may be prepared through hydrothermal synthesis with cesium carbonate and sodium tungstate as raw materials and citric acid as reducing agent. It can be made into coating for architectural glass or car glass. Preparation of CsxWO3 Coating Step one: Preparation of Cs-doped tungsten bronze slurry. The CsxWO3 particles were dispersed in aqueous solution to obtain dispersion slurry, and polyethylene glycol-400 was added as wetting agent, and…

Cesium tungsten bronze powder is a kind of infrared thermal insulation nano material. It is also a kind of tungsten bronze doped with alkali metal element (Cs). As a kind of infrared thermal insulation material, cesium tungsten bronze has the ability to selectively transmit light waves. Generally, it has high visible light transmittance and low near-infrared transmittance. It means that cesium tungsten bronze may shield the near-infrared light while guaranteeing good daylighting, thereby playing a role of transparent heat insulation.…

Nano cesium tungstate powder, with molecular formula of Cs2WO4, is a kind of infrared thermal insulation nano material that is applied on the architectural glass in the form of transparent heat insulation coating. Preparation of Nano Cesium Tungstate Powder Step one: Sodium tungstate and cesium carbonate are dissolved in citric acid solution and methanol solvent, after stirring, the reaction is performed at 180-200°C for 2~3 hours. Then, the mixed liquor of tungsten and cesium is obtained. n(CS)/n(W) = 0.33:1. Step…

Cesium tungstate, as a kind of infrared thermal insulation nano material, can be used on architectural glass with high transmittance. In order to reduce building energy consumption, energy-saving technology of building glass emerged as the times require. There are different ways to save energy. Convection, conduction and radiation are the ways that energy enters the room through windows. Therefore, according to these ways, energy efficient glass can be divided into the following types basically: 1. Combined building energy-saving glass such…