MoO_3-CeO-Co_3O_4催化剂CO催化氧化及耐硫性能  

Performance of MoO_3-CeO-Co_3O_4 catalysts for CO catalytic oxidation and sulfur resistance

作　　者：邢聪聪[1] 李坚[1] 梁文俊[1] 樊星[1] 史蕊[1] 

机构地区：[1]北京工业大学区域大气复合污染防治北京市重点实验室,北京100124

出　　处：《工业催化》2017年第6期39-42,共4页Industrial Catalysis

摘　　要：采用共沉淀法和浸渍法联用制备不同Mo质量分数的x MoO_3-6CeO-Co_3O_4催化剂,测试催化剂催化氧化CO效率及其耐硫性能,并对催化剂进行BET、SEM、FT-IR和H2-TPR等表征。结果表明,MoO_3的添加可以提高催化剂低温活性,5.61MoO_3-6CeO-Co_3O_4催化剂低温活性最佳,40℃时CO去除率达98%,耐硫性能达90 min。xMoO3 -6CeO- Co3O4 catalysts with different Mo contents were prepared by coprecipitation method and impregnation method. CO conversion and sulfur tolerance properties of the catalysts were investigated. The catalysts were characterized by BET, SEM, FT- IR and H2 -TPR techniques. The results indicated that the addition of MoO3 could improve the activity of the catalyst at low temperature. 5.61MOO3 -6CeO- Co3O4 catalyst possessed the best activities at low temperature, and CO conversion reached 98% at 40 ℃ ,While its performance for sulfur tolerance could last 90 min.

关 键 词：催化化学 CO催化 低温活性 耐硫性能 MOO3 

分 类 号：O643.36[理学—物理化学] X701[理学—化学]