Tungsten and its alloys are the major materials applied in fusion reactors owing to their high melting point, high thermal conductivity, high strength at elevated temperatures, low sputtering yield in radiation environment.

Ammonium metatungstate (AMT, (NH4)6H2W12O40·yH2O) is a polycondensation product of solutions of ammonium tungstate. The applications of it include high distectic point metal, extra fine alloy, petrochemical catalyzer and nuclear energy, space flight, casting titanium, etc.

Titanium dioxide (TiO2) photocatalysis using sunlight as an irradiation source is a feasible technique to degrade pollutants in air. Although TiO2 possesses enticing properties such as chemical stability, strong oxidizing power, photo-resistance, availability, and low cost, its photocatalytic activity remains insufficient for large-scale applications.

WC-Co cemented carbides are widely applied in industry which include mining, grinding and metal cutting tools.  Its high hardness and toughness give its widely industrial applications. The microstructural scale is a major to influence its mechanical properties. The hardness can be enhanced by with smaller carbide grain size. The common grain size of WC-Co ranges within l-10 pm.

Tungsten carbide (WC) has been widely applied as integral composition of hardmetal, or cemented carbide. Cemented carbides are composite materials consisting of a hard phase (WC) and a metal, usually Co, which binds the WC grains. The composition of the material (amount of Co) mostly influences their mechanical properties. The greater the Co content the tougher and softer the material is. Hardmetal is used for cutting, drilling and wear resistant pieces.

Tungsten copper is a material with high electricity conductivity, when using for resistance welding, the material is bonded with copper hand.

In recent years, ultrafine tungsten powders have gained attention owing to their excellent characteristics. They have been added to hard metals and alloys with superior hardness and wear resistance.

As the fossil fuels brings about global warming and climate change, find a substitute source of clean energy such as wind energy, hydrogen energy, and solar energy has become critical. Photoelectrochemical (PEC) water-splitting technology is one of the most considerable technologies to synthesis H₂ gas as a clean energy. Titanium dioxide (TiO₂) has caught a lot attention as an effectual photoelectrode in PEC water-splitting for H₂ production owing to its unique and promising functional properties, such as high photocatalytic activity, long term photo-stability, superior oxidation ability, inertness to chemical environment, as well as low cost.

Tungsten oxide (WO3) is believed to be a remarkable and feasible photoactive material due to its stable physico-chemical characteristics under different reaction conditions. Furthermore, WO3 has a band gap energy around 2.6 eV. Nether less, bulk WO3 semiconductor, surface accumulation of photo generated charge carriers led to increase their recombination rate and eventually limiting the photocatalytic efficiency.

Employing semiconductor powders as photocatalysis for the degradation of organic pollutants in water has received a lot attention in the last decade. Titanium dioxide (TiO2) inhibits amazing photocatalyst properties including high activity, chemical stability, and low cost. Nevertheless, the photocatalytic activity of TiO2 (with band gap of 3.2 eV and excited by photons with wavelengths under 387 nm) is still limited to irradiation by UV wavelengths, so that photocatalytic process does not occur effectively during the irradiation with solar light as only about 4% of the total radiation of the solar spectrum is in ultraviolet region.