CATALYST AND PROCESS FOR THE TREATMENT OF EXHAUST GASES FROM INTERNAL-COMBUSTION ENGINES

摘要

A multifunctional pollution control catalyst for the treatment of exhaust gases from internal combustion engines is comprised of a catalyst support having an active catalytic phase deposited thereon, said active catalytic phase comprising catalytically effective amounts of (i) zirconium, (ii) cerium, (iii) palladium, (iv) iridium and/or rhodium, and, optionally, (v) iron.