three way catalyst catalytic converter general motors exhaust gas purifier european standard 456

honeycomb ceramic carrier is adopted, which has the advantages of low cost, strong adhesion of active components, low deactivation and long service life a new rare earth cerium zirconium titanium alloy material was used to improve the heat resistance and activity of the catalyst; the active raw materials using transition metals and their oxides, alkaline earth metals and precious metals are characterized by high purification rate, long service life and low ignition temperature the application of new oxygen storage materials can effectively improve the oxidation performance of the carrier, promote the activity of the catalyst, lower the ignition temperature the scientific team can use the three-way catalyst to make the exhaust emissions reach the corresponding international standards.syi