Provided are an exhaust treatment catalyst and an exhaust article
containing the catalyst. The catalyst comprises a carrier; a first layer
deposited on the carrier, said first layer comprising substantially only
at least one refractory metal oxide; a second layer deposited on the
first layer, said second layer comprising substantially only at least one
oxygen storage component and at least one binder therefore; and a third
layer deposited on the second layer, said third layer comprising at least
one layer of one or more platinum group metal components supported on a
refractory metal oxide support.