Trader Supply: High quality cerium CAs NO.13550-45-3 High-Entropy Alloys(HEA)-copy

Cerium is also used as an excellent environmental protection material, the most representative application is the automobile exhaust purification catalyst. Adding cerium to the commonly used precious metals (platinum, rhodium, palladium, etc.) ternary catalysts can improve catalyst performance and reduce the amount of precious metals. The main pollutants in automobile exhaust are carbon monoxide, hydrocarbons and xenon oxygen compounds, which will affect human hematopoietic function, form photochemical toxic smoke and produce carcinogens, causing damage to people, animals and plants. The three-way purification catalytic technology can fully oxidize hydrocarbons and -carbon oxide to produce carbon dioxide and water, and decompose ammonia oxides into xenon and oxygen (hence the name three-way catalysis). Platinum, rhodium, palladium and other precious metals are excellent catalytic materials for tail gas purification. However, they are expensive and have high requirements for both engines and gasoline, which limits their wide application. The addition of cerium to catalyst can obviously reduce the amount of precious metal and improve the catalytic performance, so that the price of catalytic converter can be greatly reduced. In the United States, vehicle exhaust purification catalysts have become the largest user of rare earth consumption. Cerium oxide can also be made into photocatalyst with nano titanium oxide, which is used in antibacterial ceramics and oxygen-rich ion environmental protection coatings.