Parameter

Catalyst

Heat aging temperature ˚C

Specific surface area m2/g

Specific surface reduction rate after aging %

Oxygen storage

(200˚C)

10−6 mol/g

Rate of oxygen storage reduction after aging %

Ce0.7Zr0.3O2

1000 (4 h)

17.91

64.9

254

38.9

La0.05Ce0.65Zr0.3O2

1000 (4 h)

25.07

62.8

335

25.2