Study of (La, Ce) (Pd, Mn, Fe, Co) O3-Perovskite Catalysts Characterization with Nanoparticles Producted by Compressor and Vacuum until 20/000 Km and Comparision with Imported Catalyst of Iran Khodro

(La,Ce)(Pd,Mn,Fe,Co)O3- Perovskite catalyst was prepared by the citrate route and deposited on ceramic monoliths via dip coating procedure by compressor and vacuum method. The catalyst was applied on Rd car with XU7 motors model and the amount of emission was monitored with vehicle emission test systems in Sapco Company after 10/000 and 20/000 Km. The results indicate low emission in catalyst with vacuum method and were compared with the imported catalyst with noble metals such as Palladium, Platinum and Rhodium by Iran Khodro Company" based on the Euro III standards". The catalysts were characterized by specific surface area measurements, scanning electron microscopy, X-ray diffraction, line scan and map. In the results indicated in the home made sample, the amount of carbon monoxide, nitrogen oxides and hydrocarbons were lower than imported catalyst with Iran Khodro company with nobel metals. The illustration shows Nano Particles size on coat. The microstructure evaluation showed that the improved properties can be related to the existence of nano particles on coating..