The functions of rare earth are as follows:stablizing surface area of the alumina washcoat,acting as a promotor,acting as an oxygen storage component,improving poison tolerance of the catal...

• 其作用在于:提高了载体性能,储氧功能,提高催化剂的抗中毒性,提高催化剂热稳定性,作为助剂,应用在氧传感器中等。