The thermal stability of barium tungsten electrodes, that is, their ability to maintain physical and chemical properties at high temperatures, is crucial to their performance and service life. The following are the main factors affecting the thermal stability of barium tungsten electrodes:

Ammonium metatungstate (AMT), an important inorganic compound, holds a pivotal position in modern industry due to its unique physicochemical properties. In material preparation, AMT serves as a critical raw material for producing high-performance tungsten-based materials. Through processes like thermal decomposition, AMT can yield uniform, high-purity tungsten powder, which is essential for manufacturing tungsten-based alloys and tungsten carbide powder.

The electron emission performance of barium tungsten electrodes is affected by a combination of factors, including temperature, surface state, composition, electric field, aging and use. These influencing factors interact with each other and jointly determine the emission efficiency and service life of the electrode.

Ammonium metatungstate (AMT) is a significant tungsten compound, highly valued for its catalytic properties in industrial applications. For instance, in the production of denitration catalysts, AMT-based catalysts typically use titanium dioxide as a carrier. Through specialized preparation processes, AMT is loaded onto the carrier, forming a catalyst with high activity and stability, used to adsorb pollutants like sulfur and nitrogen oxides emitted from coal-fired power plants. In petroleum refining, AMT serves as a catalyst to promote cracking reactions, hydrodesulfurization, and hydrodenitrogenation reactions.