Due to its unique band gap properties, inherent vacancy defects, and low electrical conductivity, WS₂ films can be used for catalysis. Catalysis including photocatalysis and electrocatalysis is essential in our daily life, and they have been widely used for environmental protection and clean energy generation.

A study conducted mainly by researchers at Nanjing University reports the uniform nucleation (>99%) of bilayer molybdenum disulfide (MoS₂) on c-plane sapphire. Two-dimensional transition-metal dichalcogenides (TMDs) are of interest to researchers in the field of electronics. It is believed that the combination of good electrostatic control, smaller bandgap, and higher mobility than single-layer TMDs has the potential to improve the power-delay products of transistors. However, despite the progress made in the growth of single-layer TMDs, multilayer controlled epitaxial growth remains a challenge.

Dye-sensitized solar cells (DSSCs) have drawn wide attention because of their incomparable advantages including low cost, easy to manufacture, environmental-friendly and high theoretical photoelectric conversion efficiency (PCE). However, traditional Pt CE materials are expensive, have a limited source, and are easily corroded by the I3−/I− electrolyte.

Tungsten alloy green bullet has higher density than lead bullet so that it has better penetrating power for armor piercing. And numerous countries have used tungsten alloy bullet for a number of years as it has high density and good firing properties, but without using lead.

Tungsten carbide blade is fabricated using tungsten carbide or ultrafine tungsten carbide as raw materials. Wherein, tungsten carbide has hardness (HRA) of 91 and toughness (MPa) of 1471, while ultrafine tungsten carbide has hardness (HRA) of 92 and toughness (MPa) of 2550.

Tungsten carbide hollow drill, which is called annular cutter when it is used in metal, is a drill specifically designed to remove a cylinder of material, much like a hole saw. Tungsten carbide hollow drill bits are used for many applications, either where the core needs to be preserved, or where drilling can be done more rapidly since much less material needs to be removed than with a standard bit.

In 1972, Honda and Fujishima successfully used n-TiO₂ electrode to produce hydrogen from water by photolysis of solar energy, which made people realize the application prospect of Photoelectrochemical conversion of solar energy to electric energy and chemical energy. At the same time, this technology is applied to solve the problem of dye wastewater and other industrial wastewater.

In order to prepare tungsten powder from ammonium paratungstate, tungsten oxide should be burned in a weak reduction atmosphere before hydrogen reduction is a common method in industry. The tungsten powder prepared by this process is mostly polycrystalline, which is the main material for preparing tungsten alloy and tungsten carbide.

Tungsten has excellent physical properties, such as high melting point, high density, high hardness, excellent high temperature strength and high temperature plasticity. Tungsten and its alloys are widely used in equipment manufacturing industry, iron and steel industry, electric power, information industry, petrochemical industry, aviation and aerospace industry, military industry and other fields. The application of new technology and materials of great importance in national defense occupy an important position in our national economy.

Ultra-fine grained tungsten carbide-based hard alloy has high strength and high hardness "double high" performance, which can be used in the production of printed circuit board micro drill bits, dot matrix printer printing needles, precision tooling, and difficult material tools.