Ti doped violet tungsten oxide refers to the crystal lattice of VTO doped Ti (titanium atoms) to form a new type of crystal lattice. Ti doped W18O49 nanowire has good sensitivity and selectivity to NO2 gas. NO2 adsorbs on the surface of the tungsten oxide nanowire as an electron acceptor. It captures electrons from the conduction band of nanowire, resulting in a decrease in conductivity of the nanowire and a gas-sensitive response. Compared with W18O49 nanowire (pure phase), there are…

Mo doped violet tungsten oxide, or Mo-W18O49, can be synthesized by hydrothermal method. The Mo-W18O49 can be applied as the catalyst in manufacturing hydrogen with a very high activity. Why does molybdenum doping can increase the hydrogen activity of Mo-W18O49? After doping Mo, violet tungsten oxide, as a catalyst, whose hydrogen production activity is improved because the doping of Mo increases the active sites of catalyst, since the approximate 3D microstructure composed of one-dimensional nanowire can not only help electronic…

V-doped violet tungsten oxide, or V doped violet tungsten oxide, is doping V (vanadium) into VTO (W18O49) nanowire lattice structure to generate doped W18O49 nanowire. Some studies indicate that V doped violet tungsten oxide can be directly synthesized by solvothermal method, using tungsten hexachloride (WCl6) as tungsten source and NH4VO3 as dopant. Studies have shown that the gas sensor made of V-doped tungsten oxide nanowire has obvious sensitive response at room temperature and good stability response to the nitrogen dioxide…

Doped violet tungsten oxide (VTO, W18O49) is the VTO product obtained by doping modification with a better property, like gas sensitive, catalyzing and others. Studies have indicated that doping is the excellent method to modify W18O49. The common seen doped violet tungsten oxides are V-doped violet tungsten oxide, Mo doped violet tungsten oxide and Ti doped violet tungsten oxide. They show their own unique properties as the doping elements are different. Here are a few examples, as listed below: 1.…

High-purity violet tungsten oxide, high-purity VTO for short, is a kind of violet powder with very high main content and very low impurity content. Its chemical formula is WO2.72 or W18O49. High-purity material refers to a new type of material with high chemical purity, low impurity content, and excellent physical and chemical properties compared with conventional materials. It is obtained by modern metallurgy technology under a super-clean environment. With the continuous improvement of material purity, it will further reveal the…