The tungsten oxide lateral heterostructure is in principle achieved by continuously growing the second material at the edge of the existing area of the first material. The tungsten oxide lateral heterojunction structure can be prepared by in situ adjustment of its gas phase reactant during the growth of two-dimensional tungsten oxide crystals. Characterization of Raman and photoluminescent maps shows that it has a clear structure and optical modulation.

Hydrogen production hydrogen reaction speed depends very much on the electrocatalyst. To adapt to industrial production, electrocatalysts not only have a low overpotential, but also to the low price, rich in content and to have good cycle stability and catalytic stability. Tungsten oxide is one of the materials commonly used as a hydrogen evolution reaction electrocatalyst. Compared with Pt and other metals, it is cheap and rich in content. And tungsten oxide can form tungsten bronze with high electron and proton conductivity in a sulfuric acid electrolyte.

The most common method for preparing tungsten oxide heterojunctions is chemical vapor deposition (CVD). The basic principle of the CVD method is to grow a two-dimensional crystal on a tungsten oxide substrate, and then grow different two-dimensional materials on the basis to form a two-dimensional heterogeneous structure. The main operation procedure is to pass the reactant into the reaction vessel in the form of gas and then to deposit it on the substrate as a solid after the chemical reaction takes place.

Owing to the extensive exploitation of tungsten ore, the amount of tungsten raw resources has decreased sharply. In the face of the continuous reduction of tungsten resources, the recovery of tungsten from tungsten waste has become an important breakthrough to alleviate the shortage of raw materials. The hard alloy grinding material is the main source of tungsten recovery because of the high grade of tungsten.

The common decomposition methods of scheelite concentrate include acid method and alkali method. At present, with alkali method is relatively common, but recently, in view of the high phosphorus content of scheelite, many scholars have put forward the theory and method of phosphoric acid decomposition, and in general, the benefits of scheelite phosphate extraction method improve a lot.

With the development of China's manufacturing industry, the thirst for ultrafine tungsten powder has been greatly stimulated. Ultrafine tungsten powder is the main raw material for the direct production of ultrafine tungsten carbide powder. In the existing market, the price of high performance ultrafine tungsten carbide powder is about 1 to 2 times that of ordinary micron scale tungsten carbide powder, and the cost of production is basically the same. Therefore, the production of ultrafine tungsten carbide powder is an effective way to improve the added value of tungsten raw materials.

Organic amine tungstate, molecular formula is 5(N₂H₅)_2`O₁₂WO₃ (called self reductive tungstate, Auto Reducing Tungstate, as abbreviated as ART). Ultrafine tungsten powder can be prepared by hydrogen reduction by ART. In a solution containing tungstate root, the formation of ART is based on the following reaction:

Cerium tungsten alloy wire is a kind of electrode material has broad application prospects, compared with the traditional thorium tungsten wire, tungsten cerium has electronic work function, low high emissivity, high luminous efficiency, low voltage and other advantages, the most important thing is also no radioactive pollution in the electronic emission tube, argon arc welding and other aspects of the future to replace thoriated tungsten alloy wire is represent the general trend.

Photo-driven photocatalytic reaction is considered as one of the most promising strategies to solve the current energy and environmental problems. Photocatalytic technology is a synthesis of light and catalytic words, refers to the presence of light and catalyst in the chemical reaction. When used as a photocatalyst, tungsten oxide can not only degrade various organic pollutants, but also can be used for water oxidation, pyrolysis water and carbon dioxide reduction.

Tungsten oxide is one of the most studied n-type semiconductor photocatalysts and can be widely used in organic dye degradation, water oxidation, water cracking and carbon dioxide reduction. Tungsten oxide materials have a narrower band gap of about 2.2-2.8 eV, which is affected by morphology and stoichiometric properties.