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制备了高性能稀土储氧材料Ce0.5Zr0.4Y0.1O2和镧稳定的氧化铝(La-Al2O3), 并以此为基础制备了中偶汽油车尾气净化催化剂. 经老化前后的性能检测证实,稀土储氧材料具有优异的织构性能和储氧性能且高温稳定性优良;La-Al2O3具有优异的织构性能及优异的抗高温老化性能. 中偶催化剂对HC, CO和NOx具有优异的低温活性、抗高温老化性能和低的劣化系数. 捷达-MT型汽油车排放检测表明该催化剂能够满足欧Ⅲ排放标准.

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