Yellow tungsten oxide, which is also known as tungsten trioxide or WO3, is an n-type semiconductor material with excellent performance and wide use. For example, yellow tungsten oxide can be used as a photocatalyst that has broad application prospects in photolysis of water and degradation of organic and inorganic pollutants in the atmosphere and water.

According to reports, researchers have prepared yellow tungsten oxide (tungsten trioxide/WO3) by air annealing of various W precursors, and examined the effects of W precursor type and pretreatment conditions on the physical properties and photocatalytic activity of the obtained yellow tungsten oxide powder.

Yellow tungsten oxide, which is also called tungsten trioxide or WO3, is developed as a photoanode to produce photoelectrochemical cell for solar energy conversion.

Triclinic yellow tungsten oxide is also known as triclinic tungsten trioxide or triclinic WO3. According to the researchers, the triclinic phase is the thermodynamically stable form of tungsten trioxide at room temperature. They refined the triclinic yellow tungsten oxide for the first time from neutron diffraction data, which were obtained on a new high resolution powder diffractometer.