In the aged CZO and CZYO mixed oxide systems, the adding of a little precious metal ( Pt, Pd, Rh ) increase the reduction speed and improve OSC obviously.

• 在高温老化的复合氧化物CZO和CZYO体系中,添加微量贵金属(Pt,Pd,Rh)明显提高还原速度并增加OSC。 含贵金属的CZO或CZYO的OSC与其组成和贵金属的种类有关。