| Non-noble metal containing mixed oxide catalysts used for automobile exhaust control were investigated. Results indicated that,among the miked oxide catalysts under study, ASC(mixed oxides of rare earth, Pb, Mn, Cu, Cr, and additives) has the heighest activity and a prolonged resistence to thermal shocks, carbon deposit, and poisoning of sulphur, lead and phosphorous compounds, and therefore possesses certain prospect of application under vehicle operation conditions. |
