Tungsten Trioxide Applied for Glass Curtain Wall Thermal Insulating Film

Tungsten trioxide for preparing glass curtain wall thermal insulating film are often tungsten trioxide nano particles doping with other elements. And these elements may be alkali metal elements or rare earth elements.

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In a word, the glass curtain wall thermal insulating film of tungsten trioxide is tungsten oxide nano film, which can be synthesized by pulsed electrodeposition. Some experts achieved the film with particle sizes between 45 and 330 nm by varying pulse duration from 5 to 500 ms. Shorter pulses increased the rate of new particle nucleation above the rate of existing particle growth, allowing for the observed variations in size. Cathodic deposition voltage (−1 ∼ −3 V) had little effect on particle size. Compared to films prepared by continuous electrodeposition, tungsten oxide nano films showed a higher photoactivity and greater current density for the hydrogen intercalation reaction. Functional improvements are explained by the smaller particle size and larger surface area of nanocrystalline tungsten oxide.

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