Foamed metal carrier catalyst has the advantages of fast light-off, small size, high strength and good heat resistance. Foamed metal is the most widely used in motorcycle exhaust purification. It is pretreated on the surface of the foamed metal carrier, and a transition layer is generated between the foamed metal carrier and the active coating to solve the thermal expansion matching gradient transition between the metal material and the active coating, and the transition layer is coated with Ce It is made of active coatings of rare earth elements such as La, Pr, etc., and then loaded with active components containing precious metals such as Pt and Rh. The surface of the carrier is treated to form a transition layer, and the bonding firmness of the coating is good; the use of high-temperature-resistant materials with high surface area, the catalyst has good high-temperature resistance performance; the ratio of precious metals and rare earth elements is optimized, and the light-off temperature of the catalyst is low; high-performance storage Oxygen material formula, high purification efficiency of catalytic converter; automatic coating equipment suitable for metal honeycomb carrier, good coating uniformity; long service life of metal catalytic converter: gasoline vehicles can reach more than 80,000 km; strict quality control and inspection , product quality is stable; formulas with different costs are available, and the emission is up to standard while taking into account the economy.

The advantages of foam metal over honeycomb ceramics:
1. Foam metal has the characteristics of metal, which can be deformed and shock-resistant, which greatly improves the service life of the three-way catalytic converter for automobile and motorcycle exhaust gas.
2. The high temperature resistance and thermal shock resistance of foamed metal are better than that of foamed ceramics.
3. The unique three-dimensional through-hole structure of metal foam has a larger internal surface area per unit volume and a better filtering effect.