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中文摘要：
采用共沉淀法制备了铈锆复合氧化物CeO2-ZrO2-Y2O3（CZ—Y）和CeO2-ZrO2（CZ），对其进行了BET、TPD和储氧量（OSC）的表征，并考察了这两种铈锆复合氧化物对Pt-Rh型三效催化剂性能的影响。结果表明，含CZ—Y的催化剂具有较好的低温活性和抗老化性能。
英文摘要：
CeO2-ZrO2-Y203（CZ-Y） and CeO2-ZrO2（CZ）composite oxides were prepared by coprecipitation technique, TPD, BET and oxygen storage capacity（OSC） investigations were carried out on samples, The influence of the composite oxides on the catalytic activity of Pt-Rh three-way catalysts was investigated. The results showed that the catalysts containing CZ-Y soild solutions have high activity and high thermostability compared with that containing CZ solid solution.
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