While the BET surface area data indicated that the durability of pure Zr[O.sub.2] was relatively poor compared to that of A[1.sub.2][O.sub.3], Zr[O.sub.2] could be an important component for improving the low temperature activity of the TWC provided that the Zr[O.sub.2] is stabilized with materials such as yttria and/or lanthana
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Promoters on the Kinetics of NO and [N.sub.2]O Reduction by CO over Alumina-Supported Palladium and Rhodium," J.
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