Violet tungsten oxide is powder with unique structure of needle. It is composed of many different components. The components and their quantities are determined by the specific preparation method. Violet tungsten oxide has some alternate names -γ-tungsten oxide, for example.

PEC technology is based on solar energy and water, both of which are renewable. PEC technology has no by-products and will not bring pollution to the environment. Moreover, PEC technology can be applied in small scale and developed in large scale. Therefore, this technology is the most attractive way to produce hydrogen directly by solar energy.

Violet tungsten oxide with low apparent density has high application value in the field of powder metallurgy. It is an extremely important material for the preparation of ultrafine tungsten powder and tungsten carbide. Low apparent density of violet tungsten oxide is determined by its unique needle structure.

Silver nickel electrical contact has been widely used in various low-voltage electrical appliances because of its good thermal conductivity, low and stable contact resistance, excellent processing performance and other advantages. However, due to its poor anti fusion welding performance, the application range of silver nickel electrical contact is affected.