The overuse of fossil fuels has resulted in the continuous rise of global temperature. Finding new clean energy has become imminent. In the existing emerging energy sources, solar energy has attracted much attention as an inexhaustible and pollution-free energy. Recently, there have been reports from foreign countries that a scientific research team has successfully implemented water hydrogen by using photocatalysis.

Ammonium metatungstate is an important tungsten intermediate compound. It is mainly used for the manufacture of tungsten carbide and other tungsten compounds in the petrochemical industry. It is an important precursor for the production of tungsten carbide catalysts. Tungsten carbide is widely used because of its catalytic activity similar to that of platinum metal in catalytic reactions such as alkane dehydrogenation to olefins, olefin isomerization, and hydrogenation reactions.

Tungsten electrode is one of the most common arc electrode materials. Tungsten electrode material is mainly used for tungsten argon arc welding in welding. It is generally used as cathode part during argon arc welding, and it is suitable for welding of all metal materials.

In recent years, some new materials with tungstate photocatalytic properties have been discovered, tungstate material belongs to semiconductor materials, because of its unique structure and physical and chemical properties, so it has a bright prospect of application in magnetic materials, catalyst and scintillation materials.

Violet nano tungsten oxide is the optimum raw material for producing ultrafine tungsten nanopowder with uniform grain size now as violet tungsten oxide is elongated columnar micro crystals with ammonium paratungstate fake crystalline accumulated. Its sharp split pore structure forms good permeability and can realize the fast recovery of dry hydrogen. At the same time, it can avoid generating β-W and α-W in WO2 period.

Yellow nano tungsten oxide is prepared by hydrothermal method using tungstic acid as precursor and thiourea as basic adjuvant. The influence of different reaction conditions on the morphology and gas sensitivity of yellow tungsten oxide can be studied by changing the preparation temperature of the precursor and the content of thiourea.

Dark blue nano tungsten oxide is a kind of semiconductor material with good chemical stability that may be applied in manufacturing semiconductor devices and electronic material of integrated circuits.

Blue tungsten oxide nanopowder may be applied in the electronics industry. Electronics is the science of controlling electrical energy electrically and deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes, integrated circuits, associated passive electrical components, and interconnection technologies.

Blue nano tungsten oxide’s price affecting factors are mainly listed as follows:

Micro fine blue tungsten oxide’s XPS experiment is using a surface-sensitive quantitative spectroscopic technique to systematically analyze the valence changes of blue tungsten oxide during tungsten powder producing from tungsten ore. XPS is the short for X-ray photoelectron spectroscopy.