Ferro-tungsten is an important raw material in industry. Ferro-tungsten is widely used in mining, metallurgy, machinery, construction, transportation, electronics, aerospace and military industries. Traditional ferro-tungsten is made from wolframite concentrate, mixed with additives in a certain proportion and smelted in electric furnace. This smelting process has some technical problems, such as difficult source of raw materials, high requirement for raw materials, high cost, and crushing by crusher in the preparation process, resulting in uneven products.

Tungsten oxide nanowires are a fantastic one-dimensional material, which is rarely introduced on academic websites. It may not be known to many that tungsten oxide nanowires can also be used as absorbing materials for radar electromagnetic waves, such as stealth fighter coatings, strategic missile concealment and so on.

Tungsten oxide has unique physical properties such as photochromism, electrochromism, thermochromism and gas sensitivity. Its color change can be achieved by changing irradiation wavelength, temperature or applied voltage. Therefore, tungsten oxide can be used in many fields such as sensors, electronic devices and so on. The nature of Yue Yue, its development and research has become a hotspot all over the world.

Quantum dots are zero-dimensional nanomaterials consisting of a small number of atoms. In recent years, quantum dots (QDs), as a new type of nanomaterials with unique physical properties, have attracted extensive interest of researchers at home and abroad. Their research contents involve physics, chemistry, materials and other disciplines, and have become a new interdisciplinary subject.