采用超声辅助的反相共沉淀法制备了合成气转化制低碳醇用CuCo基催化剂,研究了碳纳米管(CNT)作为助剂对催化剂的组织结构、表面吸附行为、合成低碳醇催化性能等的影响规律和作用机制.粉末X射线衍射物相分析结果表明,CNT的改性有利于Cu-Co尖晶石相的形成,使合成醇的活性位增多,程序升温实验分析结果显示了CNT的添加改善了催化剂的还原性能,显著提高了催化剂表面对CO的吸附活化能力和碳链增长能力,CNT改性制备的催化剂对CO加氢合成低碳醇表现出较高的催化活性和醇时空产率及C2+醇选择性.
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