Relation Between Cell Density And PM Content Investgation of Three-Way Catalyst

摘要

In this paper,Pd/Rh series catalyst substrate samples were prepared at the different cell density,with different volume.The fresh catalyst aged.And Catalysts test by light-off factor (LOF).The results tested demonstrated that,it can achieve equal performance levels with the cell density is 600cpsi that the catalyst sample of the cell density is 400cpsi with the precious metal content for the 1.2g/L.This is more efficient for low content of noble metal catalysts.This work is still importantly to promoted catalyst stability,that the catalyst structure is optimized.And it can be used as the interaction between cell density and noble metal content of catalysts.