ZrO_2负载Cu催化剂对CO低温催化氧化研究  

Charaterization and Catalytic Activity of CuO Supported on ZrO_2 for the Low Temperature CO Oxidation

作　　者：陈志[1] 孙国新[1] 

机构地区：[1]济南大学化学化工学院,山东济南250022

出　　处：《山东化工》2010年第12期13-17,共5页Shandong Chemical Industry

基　　金：济南大学博士基金项目(No.B0641)

摘　　要：用溶胶-凝胶-超临界干燥法制备了纳米氧化锆。采用沉淀法制备氧化锆负载铜催化剂。制备的催化剂用X-ray射线衍射(XRD),透射电镜(TEM),比表面积(BET)和H2-TPR等进行了表征。研究了催化剂的焙烧温度和负载比例对CO转化效率的影响,其最佳焙烧温度为650℃,Zr与Cu的最佳物质的量比是10:8。获得催化剂在温度为68℃具有催化活性,176℃时CO的转化率达到50%,较好地实现了ZrO2负载Cu在较低温度下对CO的催化。Nano ZrO2 has been prepared by sol- gel and supercritical drying technique. The catalysts of CuO loading on the support ZrO2 was prepared by precipitation method. The catalysts were charaterized light-off temperature of CO oxidation was 68℃ when the molar ratio of Zr and Cu was 10：8 and the calcined temperature was 650℃. The CO transformation efficiency was up to 50% at 176℃. The preapred catalysts of Cu supported on ZrO2 had high activity for CO oxidation at low temperature.

关 键 词：溶胶-凝胶 超临界干燥 ZRO2 CUO CO氧化 

分 类 号：O614.12[理学—无机化学] O643.36[理学—化学]