采用超声辐射条件下的反相共沉淀法制备CO加氢合成低碳醇用CuCo催化剂,研究稀土助剂Ce对CuCo氧化物催化剂结构与性能的影响,并借助X射线衍射、N2吸附等温线和程序升温分析技术对催化剂进行表征.结果表明,Ce的加入使催化剂材料晶粒细化,显著改善样品的还原性能,增加催化剂的比表面积,促进合成醇活性位的形成,因而明显改善催化剂的活性与选择性.
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