Ultrafine yellow tungsten oxide powder, or ultrafine tungsten trioxide powder, or ultrafine WO3 powder, is a multidingal semiconductor material, which has broad application prospects in catalytic materials, invisible materials, electrochromic materials and gas-sensitive materials. For example, micron or submicron yellow tungsten oxide powder is often used as a catalyst in the chemical and petrochemical industries.
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Preparation of Ultrafine Yellow Tungsten Oxide Powder
Solid phase method, liquid phase method, and gas phase method can be used to prepare ultrafine yellow tungsten oxide powder. Wherein, the liquid phase method mainly includes precipitation method (chemical precipitation method and co-precipitation method), hydrothermal method, sol-gel method, microemulsion method, hydrolysis method. These preparation methods have their advantages and disadvantages. For example, although the solid-phase method has simple process and other advantages, it also has disadvantages: the powder is easy to agglomerate; it causes environmental pollution.
