Tungsten trioxide is an important semiconductor material, which has important applications in gas sensing, catalysis, photoelectric conversion, field emission and other fields. Tungsten trioxide nanosheets with two-dimensional structure have attracted more and more attention in recent years because of their unique photoelectric properties.

Ceramic cutting tools have high hardness and wear resistance, and show excellent cutting performance in high-speed cutting and dry cutting. They are a kind of tool materials with great development prospects. Ceramic materials have excellent thermal stability and wear resistance. They are ideal materials for manufacturing forming dies. They have great development prospects, but their toughness is very poor, so they have not been widely used in the die industry.

Tungsten has many advantages, such as high melting point, high density, high strength, high hardness, low thermal expansion coefficient, excellent corrosion resistance and good processing performance, so it is widely used in aviation, aerospace, electronics, chemical industry, military weapons and other fields.

Tungsten has been widely used because of its high melting point (3410 ℃) and excellent physical and chemical properties, such as rocket and aircraft engine parts, gas rudder control components, rocket's forebody, contact plug, radiator and so on.

Silver tungstate material is a kind of important metal tungstate material. It has unique crystal structure and stable physical and chemical properties. Therefore, it can be used as a good luminescent matrix material, photocatalytic material and inorganic anti-bacterial material. It has bright application prospects in scintillator preparation, photocatalysis, medical environmental protection and other fields.

At present, energy consumption and environmental problems have become the focus of attention all over the world. As the highest energy density, clean and efficient renewable energy, hydrogen is the most potential new energy in the 21st century. It is expected to replace fossil energy in people's production and life in the near future.

Thermal spraying using spherical single crystal tungsten powder to prepare thermal spraying technology is a rapidly developing surface strengthening technology. It uses special equipment, uses heat source to heat metal or non-metal materials to melt or semi-melt state, sprays them to the surface of the workpiece with high-speed airflow, forms coatings, and improves the wear resistance and corrosion resistance of the workpiece.

Ketal is an important intermediate in chemical industry. It is often used for the protection of ketones and even as a special reaction solvent. Ketal is superior to parent carbonyl compounds in floral and fruity aroma, most of which have special aroma. As a new type of perfume, ketal has been widely used in daily chemical and food industries in recent ten years.

With the increasing complexity of living environment, cancer is becoming the most serious serious disease endangering human health. Basic research and effective treatment are considered as the key link and effective means to cure cancer. Compared with traditional radiotherapy, chemotherapy and surgical treatment, targeted drug carriers with high selectivity and low toxicity to cancer cells and little toxicity to normal cells in the course of treatment are considered to be one of the most effective methods to combat cancer.

Hydrogen is a green alternative to fossil fuels. It is of great significance to prepare and store hydrogen on a large scale and at a low cost.