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催化学报  2011 

0,1,3维CeO2的可控制备及CuO/CeO2催化剂上CO氧化反应

DOI: 10.1016/S1872-2067(10)60251-3, PP. 1336-1341

Keywords: 氧化铈,氧化铜,一氧化碳,氧化,纳米结构,拉曼光谱

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Abstract:

?以水、乙醇和乙二醇为溶剂,采用溶剂热法可控制备了0,1,3维CeO2.结果表明,0维CeO2由0.2~0.5μm纳米粒子组成;1维CeO2是直径为25~30μm,长约500μm的六方棒;松针型的3维CeO2是由以纳米粒子为单元构成的直径为1~5μm,长约50μm的光滑棒组成,其比表面积高达234m2/g.将0,1,3维CeO2负载的CuO催化剂用于CO氧化反应中,发现以1维和3维CeO2为载体时,CuO催化剂具有较大的比表面积和较强的表面还原性,因而表现出较高的催化活性.

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