轻稀土氧化物-钯催化剂对一氧化碳的氧化作用

The Effect of Addition of Light Rare Earth Oxides on Carbon Monoxide Oxidization of Pd/γ-Al₂O₃ Catalyst

摘要: 研究了轻稀土氧化物添加对Pd/γ-AL₂O₃催化剂活性的影响。实验表明,轻稀土氧化物的添加提高了单一钯催化剂对一氧化碳的氧化活性,尤以钕为最佳,其对CO的氧化温度(T_50%,T_90%和T_95%)都降低了50 ℃之多。

Abstract: The influence of light rare earth oxides on the activity of Pd/γ-Al₂O₃ has been discussed in this. The test indicates that the activity of Pd/γ-Al₂O₃ for the oxidation of carbon monoxide increased by adding in rare earth oxides, especially Nd₂O₃. The conversion temperature. T_50%, T_90% and T_95%, of this catalyst under addition are brought down about 50℃ as compared with that of the only Pd catalyst.