采用共沉淀法制备了不同比例的CeO2-ZrO2混合物,并以此作为载体用浸渍法制备了一系列Pt/CeO2-ZrO2催化剂.通过对催化剂样品的XRD、BET和OSC表征,最后用模拟汽车尾气对催化剂进行活性评价.结果表明当Ce/Zr=1时,催化剂的低温活性和热稳定性最好.
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