Ammonium Metatungstate Powder Applied for Transparent Thermal Insulation Nanopowder

Ammonium metatungstate powder, or AMT, can be used to produce tungsten oxide. AMT is called transparent thermal insulation nanopowder as the tungsten oxide heat-insulating material prepared using it as raw material is transparent.

As you may have known, metal oxide nanomaterials are an important branch of nanomaterials. Tungsten oxide is a typical transition metal oxide. And nano tungsten oxide is a new type of functional material. Due to its excellent optical properties, it has broad application prospects in many fields such as heat insulation and smart windows.

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Therefore, some experts have conducted in-depth research on the preparation method of tungsten oxide nano aqueous solution. They found that the following new method can overcome the shortcomings of the traditional preparation method. Specifically, the steps are as follows: take 10ml of deionized water in the beaker, weigh 40g of ammonium metatungstate into the deionized water, 5g of sodium borohydride was added, mixed and shaken, heated to 50°C, and allowed to stand for 10 minutes. After centrifugation, the supernatant was poured off, and deionized water was poured off to obtain tungsten oxide nano aqueous solution of tungsten oxide of a particle size of 1-100nm.

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